Question

A skier goes down a slope inclined at 25 degrees. Her mass including equipment is 60.0kg.

a. What is her acceleration if friction is negligible?
b. What is her acceleration if friction is 45.0 N?

Answer 1

netforcedownhill= ma

mgSinTheta-frictionforce=ma

Answer 2

a) 4.1 ms-2
b) 3.4 ms-2