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TO pic: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a distance of 10 meters? A boy raises a 20 kg rock to a height of 1.5 meters. a) What force does the boy use to raise the rock? b) What work does the boy do in raising the rock? How much work is done on a downhill skier by an average breaking force of 9.8 x 2. 3. 10 newtons to stop her in a distance of:10 meters? Which action would require no work to be done on an object? 1. lifting the object from the floor to the ceiling 2. pushing the object along a horizontal floor against a frictional force 3. decreasing the speed of the object until it comes to rest 4. holding the object stationary above the ground 5. 4. A student pulls a box across a horizontal exerting a constant horizontal force of 45 newtons. How much work does the student do against friction in moving the box 5.5 meters across the floor? A student does 300 J of work pushing a cart 3.0 meteTs due east and then does 400 J of work pushing the cart 4.0°meters due north. What is the total amount of work done by the student? A student pulls a block 3.0 meters along a horizontal surface at constant velocity, The diagram below shows the components of the force exerted on the block by the student. floor at a constant speed of 4.0 m/s by 6. 7. String Horizontal Surface 8.0 N 3.0 m How much work is done against friction? 6.0 N

TO pic: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a distance of 10 meters? A boy raises a 20 kg rock to a height of 1.5 meters. a) What force does the boy use to raise the rock? b) What work does the boy do in raising the rock? How much work is done on a downhill skier by an average breaking force of 9.8 x 2. 3. 10 newtons to stop her in a distance of:10 meters? Which action would require no work to be done on an object? 1. lifting the object from the floor to the ceiling 2. pushing the object along a horizontal floor against a frictional force 3. decreasing the speed of the object until it comes to rest 4. holding the object stationary above the ground 5. 4. A student pulls a box across a horizontal exerting a constant horizontal force of 45 newtons. How much work does the student do against friction in moving the box 5.5 meters across the floor? A student does 300 J of work pushing a cart 3.0 meteTs due east and then does 400 J of work pushing the cart 4.0°meters due north. What is the total amount of work done by the student? A student pulls a block 3.0 meters along a horizontal surface at constant velocity, The diagram below shows the components of the force exerted on the block by the student. floor at a constant speed of 4.0 m/s by 6. 7. String Horizontal Surface 8.0 N 3.0 m How much work is done against friction? 6.0 N

An Introduction to Physical Science
An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter4: Work And Energy
Section: Chapter Questions
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please help with questions 5 and 6 and 7 clearly!!
TOpic: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a distance of 10 meters? A boy raises a 20 kg rock to a height of 1.5 meters. a) What force does the boy use to raise the rock? b) What work does the boy do in raising the rock? How much work is done on a downhill skier by an average breaking force of 9.8 x 102 newtons to stop her in a distance of 10 meters? Which action would require no work to be done on an object? 2. 3. 4. 1. lifting the object from the floor to the ceiling 2. pushing the object along a horizontal floor against a frictional force 3. decreasing the speed of the object'until it comes to rest 4. holding the object stationary above the ground A student pulls a box across a horizontal floor at a constant speed of 4.0 m/s by exerting a constant horizontal force of 45 newtons. How much work does the student do against friction in moving the box 5.5 meters across the floor? A student does 300 J of work pushing a cart 3.0 meteTs due east and then does 400 J of work pushing the cart 4.0°meters due north. What is the total amount of work done by the student? A student pulls a block 3.0 meters along a horizontal surface at constant velocity. The diagram below shows the components of the force exerted on the block by the student. 5. 6. 7. String Horizontal Surface A 8.0 N 3.0 m How much work is done against friction?
Transcribed Image Text:TOpic: 1. What work is done by a girl who pushes a box along the floor with a force of 80 newtons for a distance of 10 meters? A boy raises a 20 kg rock to a height of 1.5 meters. a) What force does the boy use to raise the rock? b) What work does the boy do in raising the rock? How much work is done on a downhill skier by an average breaking force of 9.8 x 102 newtons to stop her in a distance of 10 meters? Which action would require no work to be done on an object? 2. 3. 4. 1. lifting the object from the floor to the ceiling 2. pushing the object along a horizontal floor against a frictional force 3. decreasing the speed of the object'until it comes to rest 4. holding the object stationary above the ground A student pulls a box across a horizontal floor at a constant speed of 4.0 m/s by exerting a constant horizontal force of 45 newtons. How much work does the student do against friction in moving the box 5.5 meters across the floor? A student does 300 J of work pushing a cart 3.0 meteTs due east and then does 400 J of work pushing the cart 4.0°meters due north. What is the total amount of work done by the student? A student pulls a block 3.0 meters along a horizontal surface at constant velocity. The diagram below shows the components of the force exerted on the block by the student. 5. 6. 7. String Horizontal Surface A 8.0 N 3.0 m How much work is done against friction?
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