Question

See Problem 2 on the first practice exam. In this problem, is the car experiencing static or kinetic friction while on the snow? Is it experiencing static or kinetic friction on the ice? • If the hill has a slope of 15◦ , determine the coefficient of friction on the snow, and on the ice. (I wound up making up nice and simple numbers for you to do this problem; it turns out this car has some very nice snow tires!)

This is question 2 from the practice exam :

A Syracusian lives at the top of a snowy hill. They are having trouble getting their car up the hill, though, since there is an icy patch that is d = 20 meters long in the middle of the hill; when they try to drive up the ice, they slide back down. (If the driver can make it past the icy patch, they will be fine.) The driver has an idea: they will accelerate as much as possible on the snow, and hope that they can make it past the ice before they slide back down.1 When the car is on snow, it accelerates forward at 1 m/s 2 ; when the car is on ice, however, it accelerates backwards at 2 m/s 2 .

Answer 1