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Work And Energy — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceWork And Energy1 Mark
Question
Work done by a fielder in catching a ball is:
✓

Answer

  1. Negative
Explanation:
To catch a ball, the fielder has to stop the ball. This means, force is applied against the motion of the ball. So, the fielder applied the force on the ball and the ball moves in the direction opposite to the direction of force till the ball comes to rest. Thus work is negative.

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