Chapter 10 Work and Energy Questions-02
Questions
1. When do we say that work is done?
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Answer
Work is done whenever the given conditions are satisfied:
(i) A force acts on the body.
(ii) There is a displacement of the body caused by the applied force along the direction of the applied force.
2. Write an expression for the work done when a force is acting on an object in the direction of its displacement.
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Answer
When a force
Work done
3. Define
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Answer
4. A pair of bullocks exerts a force of
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Answer
Work done by the bullocks is given by the expression:
Work done
Where,
Applied force,
Displacement,
