Question

Question #9450d

Answer 1

There are two types of energy involved here

When the disks are at the top of the ramp they have potential energy , also called gravity energy.

This is given by `E_p=m*g*h`
where `m=`mass, `g=` acceleration of gravity (about `9.81 m//s^2`) and `h=` height difference.

Since both disks go down the same height difference, their potential energy is the same.

At the bottom, all this potential energy has been converted in kinetic energy , or movement energy.
This is given by `E_k=1/2*m*v^2` where `v=`velocity.

Since the energy is the same, and the masses, the velocity will also be the same (provided there are no energy losses due to friction etc.)