Question

A brick sliding across a smooth floor has a coefficient of static friction of s=0.23 and a coefficient of kinetic friction of k=0.15. If the brick has a mass of 0.85 kg, how much friction will the brick experience as it slides?

Answer 1

0.029325

Step-by-step explanation:

0.23x0.15=0.0345

0.0345x0.85=0.029325

Answer 2

1.25 N

Step-by-step explanation:

It will experience friction from the kinetic friction component because it is moving ...there will be no component of static friction.

Ff = F n x k

= (.85)(9.81) x (.15) = 1.25 N