You are cutting wood with a hand saw. You have to push the saw awayfrom you as i

Question

You are cutting wood with a hand saw. You have to push the saw awayfrom you as it moves away from you and pull it towards you as itmoves towards you. When are you doing positive work on the saw?

A)You are not doing work on the saw, thesaw is doing work for you.
B)Only when pushing it away fromyou.
C)When pushing it away from you and whenpulling it towards you.
D)Only when pulling it towards you. Hint: A force does positive work when the force and the displacementare in the same direction, negative work when they in oppositedirections. Here force and displacement are always in thesame direction.

A)You are not doing work on the saw, thesaw is doing work for you.
B)Only when pushing it away fromyou.
C)When pushing it away from you and whenpulling it towards you.
D)Only when pulling it towards you. Hint: A force does positive work when the force and the displacementare in the same direction, negative work when they in oppositedirections. Here force and displacement are always in thesame direction. Hint: A force does positive work when the force and the displacementare in the same direction, negative work when they in oppositedirections. Here force and displacement are always in thesame direction.

Explanation / Answer

C)When pushing it away from you and whenpulling it towards you.

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