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A coconut of mass m kg falls from tree through a virtical distance s meter and could reach ground with a velocity of v ms due to air resistance. Work done by air resistance is

A coconut of mass m kg falls from tree through a virtical distance s meter and could reach ground with a velocity of v ms due to air resistance. Work done by air resistance is

Grade:11

1 Answers

Arun
25750 Points
6 years ago
Dear student
 
Work done by non conservative force is change in potential energy.

Here final potential energy is 0.
Initial Potential energy is mgs .

So work done by air resistance=-mgs.

Regards
Arun (askIITians forum expert)

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