A body is projected along a rough horizontal surface with a velocity `6 ms^(-1)`. If the body comes to rest after travelling 9m, then coefficient of sliding friction ,is ( take `g=10ms^(-2)`)

Answer

0.2

Explanation

We know `s = (u^(2))/(2 mu g) :.mu = (u^(2))/(2gs) = ((6)^(2))/(2 xx 10 xx 9) = 0.2`