1. What is the work formula? a. What is the unit of measurements that each has to be in? b. What is the work of a 520 N student walking a distance of 3 m?

Q: A 70.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The 70 kg athlete jumps off the trampoline with an initial velocity of 8.9 m/s. The force acting on…

Q: You throw a book with a mass of 2 kg straight up from the ground at an initial velocity of 9 m/s. a)…

A:

Q: Q1. A force of 7N as on an object. The displacement is, say 8 m, in the direction of the force. Let…

A: Work done on an object is given by the formula, Work done = (Force)(Displacement), where the…

Q: Conor is in a 1000 kg that elevator accelerates upward at 1.2 m/s2 for 9 m. If the elevator starts…

A:

Q: The net work done on an object may be determined by a combination of kinematics and dynamics or by…

A: mass =14.5 g= 14.5 ×103 kg  length = 73.5 cm= 0.735m speed = 825 m/s.

Q: d. What is the weight force on the crate? e. What is the net force on the crate? f. What is the…

A: (d) The weight of the crate is W=mg=40 kg9.81 ms2=392.4 N≈392 N

Q: Q6. You push a 100-kg file cabinet to the right on a rough horizontal surface with a force of 500 N,…

A: Given:-  The mass of the cabinet m = 100 kg  The pushing force is Fpush  = 500 N  The coefficient of…

Q: 2. Study the energy-diagram below and do the following: (a) Label the parts (b) Identify the total…

A: Mechanical energy is sum of kinetic and potential energy.

Q: About 50,000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. Part A…

A: Mass of the meteor  Speed of the meteor when it hits the ground

Q: QA 70 N force is applied horizontally to 10 Kg block at rest for displacement of 200 m 10 kg across…

A:

Q: A person pulls a toboggan for a distance of 29.6 m along the snow with a rope directed 22.1 ° above…

A:

Q: 3. A certain force applied on an object is depicted below. (a) What is the work done by the force…

A:

Q: A bullet with a mass of 14.5 g is accelerated along the length of a 73.5 cm long rifle barrel from…

A: The given mass of the bullet is m =14.5 = 0.0.145 kg Velocity of the bullet at the time of bullet…

Q: 3. A batter hits a baseball with mass 0.145 kg straight upward with initial speed of 24.0 m/s. (a)…

A: Given :  M = 0.145 kg  vo=25m/s h =20m M→mass of the base ball  vo →initial speed of the base ball…

Q: How much work must be done to stop a 1200-kg car traveling at 115 km/h? (Hint: You will need to…

A:

Q: Q7. You push a 100-kg file cabinet up on a ramp with a force of 500 N, your push force is parallel…

A:

Q: 3) A 600N block is lifted by the friction free pulley system shown. a) How many strands of rope…

A: According to Newton second law  F = ma

Q: 1. A net force of 60 N accelerates a 4-kg mass over a distance of 15 m. a) What is the work done by…

A: Given: F=60 Nm=4.0 kgd=15mu=0 m/s

Q: A pitcher accelerates a 0.14-kg hardball fromrest to 42.5 m>s in 0.060 s. (a) How much work does…

A:

Q: Q1/ If an applied force varies with position according to Fx = 3X³ + 2t² + t + 4, where X in meter…

A: Given values -  Fx = 3X3 + 2t2 + t + 4 As we know -  Work done = Force × Displacement

Q: 3. A force of 10 N is applied to a small cart for a distance of 2.0 m. (a) What work is done on the…

A:

Q: A heavy rope, 50 ft long, weighs 0.9 lb/ft and hangs over the edge of a building 140 ft high. a. How…

A: Given: Length of rope (l) = 50 ft. Weight of rope (w) = 0.9 lb/ft. Height of building (h) = 140 ft.

Q: A set of stadium stairs consist of 90, 20 cm high steps. A 70 kg runner is training by traversing up…

A: As per bartleby guideline for more than one subparts asked only first three are to be answered…

Q: sled of 50 kg mass moves along a smooth horizontal surface at 7 m/s. The sled encounters a rough…

A:

Q: A 1200 kg frictionless roller coaster starts from rest at a height of 22 m. What is its kinetic…

A: The mass of the roller is m = 1200 kg. The initial height of the roller coaster is hi = 22 m. The…

Q: A helicopter lifts a 65 kg astronaut 18 m vertically from the ocean by means of a cable. The…

A: F   to denote the upward force exerted by the cable on the astronaut. The force of the cable is…

Q: A construction worker’s hard hat is rated at 100 J, meaning that it can protect the wearer from an…

A: Rating of construction worker's hard hat = 100 J a) Mass of tile (m) = 2 kg

Q: 4. A 200 kg boulder slides down a hill. At the bottom of the hill its velocity is 2.2 m/s. a. What…

A: Mass of boulder slide =200kg Velocity at bottom = 2.2m/s

Q: What is the power formula when work is given?          a. What is the unit of measurements that…

A: Power is defined as the rate at which work is done upon an object. Power is a time-based quantity.

Q: 1. Sketch the following scenarios and use the appropriate formulas to solve: a) What is the kinetic…

A: a) mass (m) = 3 kg speed (v) = 4 ms

Q: It takes a force of 825 N to push a car through terrain. Two students push the car 35 m. a. How…

A: Given data The force required to push the car is F = 825  N The distance pushed by the student is s…

Q: What is the Kinetic Energy formula?          a. What is the unit of measurements that each has to…

A:

Q: Part A pu throw a 5.5 g coin straight down at 4.0 m/s om a 25-m-high bridge. How much work does…

A:

Q: A 66.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 7.5 m/s.…

A:

Q: Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground…

A:

Q: A sled of 150 kg mass moves along a smooth horizontal surface at 7 m/S The sled encounters a rough…

A: It is given that, m=150 kgu=7 m/sF=-90 Ns=15 m

Q: A person pulls a toboggan for a distance of 33.7 m along the snow with a rope directed 21.2° above…

A: Given Data: Distance covered, Rope inclination angle,   Tension,

Q: A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 21.5 ° above…

A: Given data: A person pulls a toboggan for a distance of, d=37.8 m The direction of the rope with the…

Q: A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) What is…

A:

Q: 150 kg object is at a height of 12 m. A.) How many joules of kinetic energy does it gain when it…

A: Given: Mass of object, m=150 kg Height at which object is located, h=12 m To determine: A). Kinetic…

Q: A boy lifts a 30.0 N dragon 2.0 meters above the ground. How much work did the boy do on the dragon?…

A: Given data: Weight of dragon (w) = 30 N Height form the ground (h) = 2.0 m Need to determine the…

Q: A 61.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.7 m/s.…

A:

Q: How much work must be done to stop a 1300-kg car traveling at 110 km/h? (Hint: You will need to…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.