1
at the end of a downhill run, a skier of mass 80 kg slides up a rough slope at an angle of 10° to the horizontal,
to slow down. he arrives at the upward slope with an initial speed of 12 ms. the coefficient of friction
between the skier and the slope is 0.4. find how far up the slope he comes to rest, and show that he remains at
rest there without falling back down the slope.