Question 1
When do we say that work is done?

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Solution

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.

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Q. When do we say that work is
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Q. When do we say work done ?

(a) When do we say that work is done? Write the formula for the work done by a body in moving up against gravity. Give the meaning of each symbol which occurs in it.

(b) How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?

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Question 1 When do we say that work is done?

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.

Question 1
When do we say that work is done?

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.