Physics, asked by anandjayaram22, 5 months ago

A block of mass m is given a velocity v over a rough and stationary plank of mass m placed on a smooth horizontal surface. Find the work done by friction in long time.

a) 1/4mv^2
b) -1/4mv^2
c) 1/2mv^2
d) -1/2mv^2

Answers

Answered by ommishra100

0

Answer:

sorry dear but i am weak at physics

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