Suppose you lift a 20 kg box by a height of 1.0 m. a) How much work do you do in lifting the box? Instead of lifting the box straight up, suppose you push it up a 1.0m high ramp that makes a 30 degree angle with the horizontal. The ramp has no friction. (There is a picture of the ramp in your text in Figure P10.78) b) How much force F is required to push the box straight up the ramp at constant speed? c) How long is the ramp? d) Use your force and distance results to calculate the work you do in pushing the box up the ramp.How does your answer compare to what you got in part a?

Suppose you lift a 20 kg box by a height of 1.0 m. a) How much work do you do in lifting the box? Instead of lifting the box straight up, suppose you push it up a 1.0m high ramp that makes a 30 degree angle with the horizontal. The ramp has no friction. (There is a picture of the ramp in your text in Figure P10.78) b) How much force F is required to push the box straight up the ramp at constant speed? c) How long is the ramp? d) Use your force and distance results to calculate the work you do in pushing the box up the ramp.How does your answer compare to what you got in part a?

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Question

Suppose you lift a 20 kg box by a height of 1.0 m.

a) How much work do you do in lifting the box? Instead of lifting the box straight up, suppose you push it up a 1.0m high ramp that makes a 30 degree angle with the horizontal. The ramp has no friction. (There is a picture of the ramp in your text in Figure P10.78)

b) How much force F is required to push the box straight up the ramp at constant speed?

c) How long is the ramp?

d) Use your force and distance results to calculate the work you do in pushing the box up the ramp.How does your answer compare to what you got in part a?

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