The distance between two telephone poles is 42.8 m. When a 1.00-kg bird lands on the telephone wire midway between the poles, the wire sags 0.220 m. Draw a free-body diagram of the bird. How much tension does the bird produce in the wire? Ignore the weight of the wire. N
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- In Problem 10, the mass of the sign is 25.4 kg, and the mass of the potted plant is 66.7 kg. a. Assuming the objects are in equilibrium, determine the magnitude of the static friction force experienced by the potted plant. b. What is the maximum value of the static friction force if the coefficient of static friction between the pot and the roof is 0.572?Your sailboat has capsized! Fortunately, you are no longer aboard the boat. Instead, you are hanging onto the end of a long rope, the other end of which is attached to a Coast Guard helicopter. Model yourself as a particle of mass M = 55.0 kg with a diameter equal to 0.500 m. The density of the air is = 1.29 kg/m3. Assume the drag coefficient between you and the air is C = 0.500. a. First, ignore the drag force due to the air. If the helicopter is flying at a constant speed v0 = 35.0 m/s, what angle will the rope make with the vertical? b. Now, consider the drag force due to the air. What angle does the rope make with the vertical given the information in part (a)?A worker is attempting to lift a 55.0-kg palette of bricks resting on the ground by means of a rope attached to a pulley. a. Before the worker pulls on the rope, what is the force exerted by the ground on the palette? b. The worker exerts a force of 295 N downward on his end of the rope. What is the force exerted by the ground on the palette? c. If the worker doubles the downward force, what is the force exerted by the ground on the palette?
- A car with a mass of 1453 kg is rolling along a flat stretch of road and eventually comes to a stop due to rolling friction. If the car begins with a speed of 10.0 m/s and the car comes to a stop in 6.88 s, what is the coefficient of rolling friction between the tires and the road?(a) Why does an ordinary rifle recoil (kick backward) when fired? (b) The barrel of a recoilless rifle is open at both ends. Describe how Newton’s third law applies when one is fired. (c) Can you safely stand close behind one when it is fired?A block lies motionless on a horizontal tabletop. You apply a force Fapp horizontally to the block, but it does not move. What can you say about the relative sizes and magnitudes of Fapp, the static friction force between the block and the table, and the kinetic friction force between the block and the table?
- The distance between two telephone poles is 60.0 m. When a 1.00-kg bird lands on the telephone wire midway between the poles, the wire sags 0.210 m. Draw a free-body diagram of the bird. How much tension does the bird produce in the wire? Ignore the weight of the wire. Nt Three blocks are connected by massless ropes that move without slipping over frictionless pulleys; the mass of block A is 1.4 kg, the mass of block C is 2.1 kg, and the mass of block B is 6.0 kg. Each pulley can be modeled as a uniformly dense cylinder with a mass of 4.0 kg. What is the magnitude of the tension (in N) in the rope between block A and the pulley? rd A 1 B C Type your answer... SubmitA A stack of books of total mass 1.18kg is placed on a table as seen in A. It is then placed on a sturdy piece of wood inclined at an angle of 51 degrees (refer to B). What is the ratio of the normal force in A to the normal force in B? « Previous Next +++++++
- C A Force Of Constant Magnitude X Bb Chapter 8 - 202120:22987 C x Ner 7.2 HW - PHYS 1301 Spr x = 7.5 Nonconservative Forces - Col x A webassign.net/web/Student/Assignment-Responses/submit?dep325336738&tags=autosave#question3572590 5 A force of constant magnitude pushes a box up a vertical surface, as shown in the figure. The box moves at a constant speed. If the mass of the box is 3.4 kg, it is pushed 2.8 m vertically upward, the coefficient of friction is 0 determine the following. (a) the work done (in J) on the box by F 866 A force diagram will help you determine the magnitude of the force F acting on the box. Then you can determine the work done o (b) the work done (in J) on the box by the force of gravity (c) the work done (in J) on the box by the normal force (d) the increase in aravitational potential enerav (in J) of the system of the box and earth as the box moves up the wall P Type here to search FI prt sc F10 home F2 F3 F4 F5 F6 F7 F8 F9 F1The distance between two telephone poles is 53.6 m. When a 1.00-kg bird lands on the telephone wire midway between the poles, the wire sags 0.180 m. Draw a free-body diagram of the bird. How much tension does the bird produce in the wire? Ignore the weight of the wire. 1314.54 x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully Nt The center of mass of the arm shown in the figure is at point A. Find the magnitudes (in N) of the tension force F, and the force F which hold the arm in equilibrium. (Let 8 = 24.0º.) Assume the weight of the arm is 44.7 N. S 0 8.00 cm N e N 29.0 cm. F