A 7.5 kg box initially at rest on a horizontal surface is pushed by a constant force of 34.2 N that is applied at angle 35.6° below the horizontal. As the box accelerates along the surface, it encounters a frictional force of 16.6 N. Using work-energy theorem, what is the speed of the box after it has traveled 4.75 m? V₁ = 0 d 5.93 m/s 4.72 m/s 7.50 m/s m

A 7.5 kg box initially at rest on a horizontal surface is pushed by a constant force of 34.2 N that is applied at angle 35.6° below the horizontal. As the box accelerates along the surface, it encounters a frictional force of 16.6 N. Using work-energy theorem, what is the speed of the box after it has traveled 4.75 m? V₁ = 0 d 5.93 m/s 4.72 m/s 7.50 m/s m

Name: A 7.5 kg box initially at rest on a horizontalsurface is pushed by a
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: A 7.5 kg box initially at rest on a horizontalsurface is pushed by a constant force of 34.2 Nthat is applied at angle 35.6° below thehorizontal. As the box accelerates along thesurface, it encounters a frictional force of 16.6N. Using work-energy th

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 80AP: A 5.0-kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of...

See similar textbooks

Similar questions

An electric scooter has a battery capable of supplying 120 Wh of energy. If friction forces and other losses account for 60.0% of the energy usage, what altitude change can a rider achieve when driving in hilly ter-rain if the rider and scooter have a combined weight of 890 N?
As a young man, Tarzan climbed up a vine to reach his tree house. As he got older, he decided to build and use a staircase instead. Since the work of the gravitational force mg is path Independent, what did the King of the Apes gain in using stairs?
A sledge loaded with bricks has a total mass of 18.0 kg and it pulled at constant speed by a rope inclined at 20.0 above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. The confident of kinetic friction between the sledge and surface it 0.500. (a) What is the tension in the rope? (b) How much work is done by the rope on the sledge? (c) What is the mechanical energy lost due to friction?
The force acting on a panicle varies as shown in Figure la P7.14. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 8.00 m. (b) from x = 8.00 m to x = 10.0 m, and (c) from x = 0 to x = 10.0 m.
A block of mass m = 2.50 kg is pushed a distance d = 2.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle = 25.0 below the horizontal as shown in Figure P5.8. Determine the work done by (a) the applied force, (b) the normal force exerted by the table, (c) the force of gravity, and (d) the net force on the block. Figure P5.8
A block of mass m = 5.00 kg is released from point and slides on the frictionless track shown in Figure P7.6. Determine (a) the blocks speed at points and and (b) the net work done by the gravitational force on the block as it moves from point to point . Figure P7.6
A block of mass m = 2.50 kg is pushed a distance d = 2.20 m along a frictionless, horizontal table by a constant applied force of magnitude F = 16.0 N directed at ail angle = 25 below the horizontal as shown in Figure P7.5. Determine the work done on the block by (a) the applied force, (b) the normal force exerted by the table, (c) the gravitational force, and (d) the net force on the block.
A 5.0-kg block is pushed 3.0 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of = 30 with the horizontal, as shown in Figure P5.76. If the coefficient of kinetic friction between block and wall is 0.30, determine the work done by (a) , (b) the force of gravity, and (c) the normal force between block and wall, (d) By how much does the gravitational potential energy increase during the blocks motion? Figure P5.76
If the net work done by external forces on a particle is zero, which of the following statements about the particle must be true? (a) Its velocity is zero. (b) Its velocity is decreased. (c) Its velocity is unchanged. (d) Its speed is unchanged. (e) More information is needed.
A 6.50 102-kg elevator starts from rest and moves upward for 3.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this amount of power compare with its power during an upward trip with constant speed?
Give an example of a situation in which there is a force and a displacement, but the force does no work. Explain why it does no work.