{a} A daredevil on a motorcycle leaves the end of a ramp with a speed of 35.0 mfs as in Figure. If his speed is 33.0 mfs when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. {Do not use any kinematic equations. Think in terms of work and energy only} [6.94 m] I- :s::_n III o'-. {b} Know how to solve problems of work and energy in terms of work orfancl energy, without using kinematic equation. You want to throw a ball straight up in the air so that it can go 4.0 m high. Calculate with how much initial velocity you need to throw the ball up. (Do not use kinematic equation for it. Think in terms of energy only}. [8.85 mls] *Know how to solve kinematic problems with famous kinematic equations: You want to throw a ball straight up in the air so that it can go 4.0 m high. Calculate with how much initial velocity you need to throw the ball up. (Solve with kinematic equations only]. [8.85 mfs] * Collisions 8: Conservation of momentum: A railroad car of mass 20000 kg moving at 3.00 m! s collides and couples with another railroad car of 40000 kg mass which is moving in the same direction at 1.20 m! s. {a} What is the speed of both coupled cars after the collision? [1.8 mfs] {b} How much kinetic energy is lost in the collision? (21600 J}