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Work Done When Force Is Varying

Ravi applied ...

Question

Ravi applied a force of $10 N$ and moved a book $30 c m$ in the direction of the force. How much was the work done by Ravi?

A

5 J

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B

3 J

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C

4 J

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D

8 J

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Solution

The correct option is B $3 J$
Work done can be calculated by multiplying the amount of force applied on the object with the distance moved by the object i.e. $W = F S$ . It s expressed in joules.
So, the correct answer is "3J".

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