Talk:Physics Study Guide/Normal force and friction

Here is a problem:

A block is at rest on the incline shown in the figure. The coefficients of static and kinetic friction are .53 and .45 respectively. The acceleration of gravity is 9.8

A 37-kg block on an incline of 24 degrees.

What is the frictional force acting on the 37-kg mass? answer in N.

5 N

Here is another problem- there is no figure