(Solved): Please answer both and all parts! Chapter 10-Conservation of Energy: Q1. A solid cylinder and a holl ...

Chapter 10-Conservation of Energy: Q1. A solid cylinder and a hollow cylinder have the same mass, same radius, and turn on frictionless, horizontal axles. (The hollow cylinder has lightweight spokes connecting it to the axle.) A rope is wrapped around each cylinder and tied to a block. The blocks have the same mass and are held to the same height above the ground as shown in the figure. Both blocks are released simultaneously. The ropes do not slip. Which block hits the ground first? Or is it a tie? Explain. (HINT: you must take into account both linear and rotational kinetic energy) Q2. A spring gun shoots out a plastic ball at speed v. The spring is then compressed twie the distance it was on the first shot. a. By what factor is the spring's potential energy increased? Show your work. b. By what factor is the ball's speed increased? Show your work.