# Spring on Ramp#

In the figure below m = 4 kg, $$\theta$$ = 29$$^\circ$$, and k = 150 N/m. In this problem assume that the ramp never moves and that there is friction between the block and the ramp.

## Part 1#

If the coefficient of static friction between the block and the ramp is $$\mu_s$$ = 0.6, what is the maximum amount that the spring can be stretched beyond its equilibrium length before the block begins to slide up the ramp?

Please enter in a numeric value in m.

## Part 2#

Suppose now that the block is sliding up the ramp at a constant velocity. By what length is the spring stretched? Assume that the coefficient of kinetic friction is $$\mu_k$$ = 0.38.