A force applied on a body of mass 4 kg for 5 s changes its velocity from 10 m/s to 20 m/s. Find the power required.

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sforrest072 · Answer 1 · 2017-10-17T01:35:18+0000

Given,

Mass of the body, m = 4kg,

Time taken, t = 5 s,

Initial velocity, u = 10 m/s,

Final velocity, v = 20 m/s,

P =?

Power, P

=120 J/s

The power required is 120 J/s.