Question

An object traveling with a speed of 10 𝑚/𝑠 slides on a horizontal floor. How far will it travel before coming to rest if the coefficient of friction is 0.30?

Answer 1

$F=ma\to \mu mg=ma\to a=\mu g=0.3\cdot9.81=2.94\ (m/s^2)$

$s=\frac{v_0^2}{2a}=\frac{10^2}{2\cdot 2.94}=17\ (m)$ . Answer