Question

class 9 question

A boy throws a ball upward and the ball return to his hand after some time what is the work done by the force of gravity on the ball..​

Answer 1

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Hey Mate!!

There is no work done by force of gravity on the ball since the ball's displacement and the force of gravity are at right angles to each other. Whenever force and displacement are at right angles to each other, the work done is zero.

Answer 2

✌ello❤

Answer:

》when ball is thrown vertically upward the work done is negative and when ball become downward work is positive becoz the work is done against gravity

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