1. A car is travelling at 50km/h along an even but icy road steps on the breaks. The wheels lock and the tires skid along the ice for a distance of 23.8 m because coming to a stop. Calculate the coefficient of friction between the cars surface and the ice. 2. A 2200kg elevator accelerates up a shaft at a rate of 1.5m/s^2. The tension in the cable raising the elevator is? 3.A motorbike goes horizontally over a cliff. The cliff is 70m high. If the bikes velocity was 30km/h, how far from the base of the cliff does the car land? For Dynamics and projectile motion, got stuck and can't figure out what to do