February 24, 2017

Homework Help: science

Posted by Anonymous on Wednesday, January 2, 2013 at 10:09am.

A rock of mass 50kg is held at 45meter from the is allowed to fall freely.find the change in potential energy,when it is a height at 20meter from the ground.also find the speed at this time and kinetic energy ?

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions