Question

A 6.0-kg box slides down an inclined plane that slopes 39° to the horizontal. The box accelerates at a rate of 3.1 m/s^2. What is the coefficient of kinetic friction between the box and the surface of the inclined plane?

0.55
0.40
0.16
0.48

Answer 1

I'm pretty sure its b. 0.40 no doubt about it XD