University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 5, Problem 101CP
Suppose that you are viewing a soccer game from a helicopter above the playing field. Two soccer players simultaneously kick a stationary soccer ball on the flat field; the soccer ball has mass 0.420 kg. The first player kicks with force 162 N at north of west. At the same instant, the second player kicks with force 215 N at east of south. Find the acceleration of the ball in and form.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The centripetal force of an object of mass m is givenby F(r) =mv^2/r, where v is the speed of rotation and ris the distance from the center of rotation.a. Find the rate of change of centripetal force withrespect to the distance from the center of rotation.b. Find the rate of change of centripetal force of anobject with mass 1000 kilograms, velocity of 13.89m/s, and a distance from the center of rotation of200 meters
The person in Figure P4.49 weighs 170. lb. Eachcrutch makes an angle of 22.0° with the vertical (as seen from thefront). Half of the person’s weight is supported by the crutches,the other half by the vertical forces exerted by the ground on his feet. Assuming he is atrest and the force exerted bythe ground on the crutchesacts along the crutches, determine(a) the smallest possiblecoefficient of friction betweencrutches and ground and(b) the magnitude of the compressionforce supported byeach crutch.
Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in the figure below. (These muscles are called the medial and lateral heads of the gastrocnemius muscle.)
P₂-205N
F₁-205 N
2626
Find the magnitude (in N) and direction (in degrees counterclockwise from the dotted line) of the total force on the Achilles tendon.
410
XN
magnitude
direction
Xcounterclockwise from the dotted Ine
What type of movement could be caused by this force?
o This force can raise the heel of the foot
This force can twist the ankle to the left or night.
This force can turn the foot to the left or right
This force can lower the heel of the foot
Chapter 5 Solutions
University Physics Volume 1
Ch. 5 - Check Your Understanding Find the magnitude and...Ch. 5 - Check Your Understanding A skydiver opens his...Ch. 5 - Check Your Understanding At the time of its...Ch. 5 - Check Your Understanding A 550-kg sports car...Ch. 5 - Check Your Understanding A car gas forces acting...Ch. 5 - Check Your Understanding For Example 5.8, find the...Ch. 5 - Check Your Understanding Two blocks are at rest...Ch. 5 - Check Your Understanding A force of 1150 N acts...Ch. 5 - Check Your Understanding One end of a 3.0-m rope...Ch. 5 - Check Your Understanding (a) Draw the free-body...
Ch. 5 - What properties do forces have that allow us to...Ch. 5 - Taking a frame attached to Earth as inertial,...Ch. 5 - A woman was transporting an open box of cupcakes...Ch. 5 - Why can we neglect forces such as those holding a...Ch. 5 - A rock is thrown straight up. At the top of the...Ch. 5 - What is the relationship between weight and mass?...Ch. 5 - How much does a 70-kg astronaut weight in space,...Ch. 5 - Which of the following statements is accurate? (a)...Ch. 5 - When you stand on Earth, your feet push against it...Ch. 5 - How would you give the value of g in vector form?Ch. 5 - Newton’s Third Law Identity the action and...Ch. 5 - Suppose that you are holding a cup of coffee in...Ch. 5 - (a) Why does an ordinary rifle recoil (kick...Ch. 5 - Common Forces A table is placed on a rug. Then a...Ch. 5 - A particle is moving to the right. (a) Can the...Ch. 5 - Drawing Free-Body Diagrams In completing the...Ch. 5 - If a book is located on a table, how many forces...Ch. 5 - If the book in the previous question is in free...Ch. 5 - Two ropes are attached to a tree, and forces of...Ch. 5 - A telephone pole has three cables pulling as shown...Ch. 5 - Two teenagers are pulling on ropes attached to a...Ch. 5 - Two forces of and act on an object. Find the third...Ch. 5 - While sliding a couch across a floor, Andrea and...Ch. 5 - Newton’s Second Law Andrea, a 63.0-kg sprinter,...Ch. 5 - If the sprinter from the previous problem...Ch. 5 - A cleaner pushes a 4.50-kg laundry cart in such a...Ch. 5 - Astronauts in orbit are apparently weightless....Ch. 5 - In Figure 5.12, the net external force on the...Ch. 5 - The rocket sled shown below decelerates at a rate...Ch. 5 - If the rocket sled shown in the previous problem...Ch. 5 - What is the deceleration of the rocket sled if it...Ch. 5 - Suppose two children push horizontally, but in...Ch. 5 - A powerful motorcycle can produce an acceleration...Ch. 5 - A car with a mass of 1000.0 kg accelerates from 0...Ch. 5 - The driver in the previous problem applies the...Ch. 5 - An 80.0-kg passenger in an SUV traveling at...Ch. 5 - A particle of mass 2.0 kg is acted on by a single...Ch. 5 - Suppose that the particle of the previous problem...Ch. 5 - Find the acceleration of the body of mass 5.0 kg...Ch. 5 - In the following figure, the horizontal surface on...Ch. 5 - Mass and Weight The weight of an astronaut plus...Ch. 5 - Suppose the mass of a fully loaded module in which...Ch. 5 - A rocket sled accelerates at a rate of 49.0m/s2 ....Ch. 5 - Repeat the previous problem for a situation in...Ch. 5 - A body of mass 2.00 kg is pushed straight upward...Ch. 5 - A car weighing 12,500 N stalls from rest and...Ch. 5 - A body with a mass of 10.0 kg is assumed to be in...Ch. 5 - A fireman has mass m ; he hears the fire alarm and...Ch. 5 - A baseball catcher is performing a stunt for a...Ch. 5 - When the Moon is directly overhead at sunset, the...Ch. 5 - (a) What net external force is exerted on a...Ch. 5 - A brave but inadequate rugby player is being...Ch. 5 - A history book is lying on top of a physics book...Ch. 5 - A truck collides with a car, and during the...Ch. 5 - Common Forces A leg is suspended in a traction...Ch. 5 - Suppose the shinbone in the preceding image was a...Ch. 5 - Two teams of nine members each engage in...Ch. 5 - What force does a trampoline have to apply to...Ch. 5 - (a) Calculate the tension in a vertical strand of...Ch. 5 - Suppose Kevin, a 60.0-kg gymnast, climbs a rope....Ch. 5 - Show that, as explained in the text, a force F...Ch. 5 - Consider Figure 5.28. The driver attempts to get...Ch. 5 - A bird has a mass of 26g and perches in the middle...Ch. 5 - -m rope is tied to a tree; the other end is tied...Ch. 5 - Consider the baby being weighed in the following...Ch. 5 - What force must be applied to a 100.0-kg crate on...Ch. 5 - A 2.0-kg block is on a perfectly smooth ramp that...Ch. 5 - Drawing Free-Body Diagrams A ball of mass m hangs...Ch. 5 - A car moves along a horizontal road. Draw a free-...Ch. 5 - A runner pushes against the track, as shown. (a)...Ch. 5 - The traffic light hangs from the cables as shown....Ch. 5 - Two small forces, F1=2.40i6.10tj N and...Ch. 5 - Two forces of 25 and 45 N act on an object. Their...Ch. 5 - A force of 1600 N acts parallel to a ramp to push...Ch. 5 - Draw a free-body diagram of a diver who has...Ch. 5 - For a swimmer who has just jumped off a diving...Ch. 5 - (a) Find an equation to determine the magnitude of...Ch. 5 - A sailboat has a mass of 1.50103kg and is acted on...Ch. 5 - Find the acceleration of the body of mass 10.0 kg...Ch. 5 - A body of mass 2.0 kg is moving along the x -axis...Ch. 5 - Force FBhas twice the magnitude of force FA. Find...Ch. 5 - Shown below is a body of mass 1.0 kg under the...Ch. 5 - A force acts on a car of mass m so that the speed...Ch. 5 - A 7.0-N force parallel to an incline is applied to...Ch. 5 - Two boxes, A and B, are at rest Box A is on level...Ch. 5 - A mass of 250.0 g is suspended from a spring...Ch. 5 - As shown below, two identical springs, each with...Ch. 5 - Shown below is a 30.0-kg block resting on a...Ch. 5 - In building a house, carpenters use nails from a...Ch. 5 - A force is applied to a block to move it up a 30...Ch. 5 - Two forces are applied to a 5.0-kg object, and it...Ch. 5 - The block on the tight shown below has more mass...Ch. 5 - If two tugboats pull on a disabled vessel, as...Ch. 5 - A 10.0-kg object is initially moving east at 15.0...Ch. 5 - On June 25, 1983, shot-putter Udo Beyer of East...Ch. 5 - A body of mass m moves in a horizontal direction...Ch. 5 - A body of mass m has initial velocity v0 in the...Ch. 5 - The velocities of a 3.0-kg object at and are and...Ch. 5 - A 120-kg astronaut is riding in a rocket sled that...Ch. 5 - Two forces are acting on a 5.0-kg object that...Ch. 5 - Suppose that you are viewing a soccer game from a...Ch. 5 - A 10.0-kg mass hangs from a spring that has the...Ch. 5 - A 0.0502-kg pair of fuzzy dice is attached to the...Ch. 5 - At a circus, a donkey pulls on a sled carrying a...Ch. 5 - Hanging from the ceiling over a baby bed, well out...Ch. 5 - A bullet shot from a rifle has mass of 10.0 g and...Ch. 5 - An object is acted on by three simultaneous...Ch. 5 - In a particle accelerator, a proton has mass...Ch. 5 - A drone is being directed across a frictionless...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Under what conditions are average and instantaneous velocity equal?
Essential University Physics: Volume 1 (3rd Edition)
Write each number in decimal form.
25. 7.68 × 10–1
Applied Physics (11th Edition)
If the electric field of an electromagnetic wave is oscillating along the z-axis and the magnetic field is osci...
University Physics Volume 2
Calculate the mass of a mole of dry air, which is a mixture of N2(78%byvolume),O2(21%), and argon(1%).
An Introduction to Thermal Physics
A contact lens is in the shape of a convex meniscus (see Fig. 31.25). The inner surface is curved to fit the ey...
Essential University Physics (3rd Edition)
An elevator suspended by a cable is descending at constant velocity. How many force vector would be shown on ...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Two packing crates of masses m, = 10.0 kg and m, = 3.80 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 3.80-kg crate lies on a smooth incline o angle 39.0°. Find the following. %3D %3D m2 m, (a) the acceleration of the 3.80-kg crate xm/s2 (up the incline) Enter a number. (b) the tension in the stringarrow_forwardA ball with mass 0.8 kg is thrown southward into the air with a speed of 30 m/s at an angle of 30oto the ground. A west wind applies a steady force of 4 N to the ball in an easterly direction. Where does the ball land and with whatspeed?arrow_forwardA cat of mass 1 kg leaps to try to catch a bird. The cat's jump was at an angle of 60 degrees with an initial velocity of 3 m/s. Find the cats vertical displacement at the highest point of trajectory, the total time the cat was in the air, the horizontal velocity of the cat at its peak position and the total horizontal displacement of the cat,arrow_forward
- Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0 m/s2to the right, what is the magnitude F of the applied force?arrow_forwardhe gravitational force exerted on a basebal 2.14 down. A pitcher throws the ball horizontally with velocity 14.0 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 160 ms. T he ball starts from rest. (a) Through what distance does it move before its release? (b) What are the magnitude and direction of the force the pitcher exerts on the ball? (Enter your magnitude to at least one decimal place.) magnitude N direction o above the horizontalarrow_forwardThe leg and cast in fig p4.40 weight 220n (w1) ,Determine the weight w2 and the angle ∝ needed so that no force is exeted on the hip joinby the leg plus the castarrow_forward
- The masses m1and m2shown in the figure are tied to eachother by a rope over a frictionless pulley. While the mass m1rotates in the horizontal plane, the mass m2staysat rest. Neglect the mass of the pulley and the rope. (m1= 4 kg, m2= 5 kg, L = 2 m)a) Find the tension in the rope.b) Find angle c) Find the velocity of the mass m1.arrow_forwardAssume the three blocks portrayed in Figure P4.59 move on a frictionless surface and a 42-N force acts as shown on the 3.0-kg block. Determine (a) the acceleration given this system, (b) the tension in the cord connecting the 3.0-kg and the 1.0-kg blocks, and (c) the force exerted by the 1.0-kg block on the 2.0-kg block. 42 N 3.0 kg 1.0 kg 2.0 kg Figure P4.59arrow_forwardA 1500 kg rocket is tobe launched with an initial upwardspeed of 50.0 m/s. In order to assistits engines, the engineers will startit from rest on a ramp that rises 53°above the horizontal (Fig.).At the bottom, the ramp turnsupward and launches the rocketvertically. The engines provide aconstant forward thrust of 2000 N,and friction with the ramp surfaceis a constant 500 N. How far fromthe base of the ramp should therocket start, as measured along the surface of the ramp?arrow_forward
- Mass Ma lies on top of mass Mp, as shown. Assume M, > Mạ. The two blocks are pulled from rest by a massless rope passing over a pulley. The pulley is accelerated at rate A. Block M, slides on the table without friction, but there is a constant friction force f between Ma and M, due to their relative motion. Find the tension in the rope.arrow_forwardAssume the three blocks (m, 1.0 kg, m, - 2.0 kg, and m, = 4.0 kg) portrayed in the figure below move on a frictionless surface and a force F = 48 N acts as shown on the 4.0 kg block. m3 mL m2 (a) Determine the acceleration given this system (in m/s to the right). m/s (to the right) (b) Determine the tension in the cord connecting the 4.0 kg and the 1.0 kg blocks (in N). N. (c) Determine the force exerted by the 1.0 kg block on the 2.0 kg block (in N).arrow_forwardTwo blocks are connected by a string, as shown in the figure (Figure 1). The smooth inclined surface makes an angle of 35 ∘ with the horizontal, and the block on the incline has a mass of 5.7 kg. The mass of the hanging block is m = 3.1 kg. Find the direction of the hanging block's acceleration. Find the magnitude of the hanging block's acceleration.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License