Answer to Question #136275 in Classical Mechanics for rose

Question

3. What type of friction coefficient should be used to compute the friction force on an object that is sliding down an inclined surface, µs or µk?

4. What type of friction coefficient should be used to compute the friction force on an object that is rolling down an inclined surface, µs or µk?

Answer 1

Question$3=\mu k$

Question4 $\mu k$