Question

A child is pushing a 10.0kg block of granite at a constant speed across a concrete sidewalk with an applied force of 50N. Determine the coefficient of friction between the granite block and the concrete sidewalk.

Answer 1

Answer: 0.51

Step-by-step explanation:

f = coefficient of friction = Force applied / Normal force

Force applied = resistive force of friction = Fr = 50 N

N = mg = (10 kg)((.8 m/s2) = 98 N

f = 98 N / 50 N = 0.51