A cube and a hollow sphere are released from the top of aninclined plane. The cube slides along the incline while thesphere starts rolling down smoothly (v=Rω). The top of theinclined plane is at height 2.5 m above the ground. Both cube andsphere have the same mass M. The sphere has a radius of R.
1. What is the speed of the sphere when it reaches the ground.Moment of inertia is 2/3MR2.
2. What is the speed of the cube when it reaches the ground?