Question

4.
A small body of mass 'm' is located in a horizontal
plane at point O. The body accelerates uniformly
and acquires horizontal velocity u then mean power
developed by the friction force during the whole time
of motion, if friction coefficient is k. :-
3mu/4kg

(2) —5/6mukg
(1)
(3) 1/2 mukg
(4)12/7 mukg
​

Answer 1

Answer:

(3) 1/2 mukg

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