A 4 kg block slides down an inclined plane that makes an angle of 23 with the horizontal. Starting from rest, the block slides a distance of 1.6 m in...

A 4 kg block slides down an inclined plane

that makes an angle of 23◦ with the horizontal.

Starting from rest, the block slides a distance

of 1.6 m in 5.1 s.

The acceleration of gravity is 9.81 m/s

2

.

Find the coefficient of kinetic friction between

the block and plane.