Question

A stuffed toy with a mass of 0.900 kilograms sits on the edge of a bed at a height of 0.830 meters. If the toy falls off the bed, what will its kinetic energy be at a height of 0.500 meters? (Ignore frictional effects.)

0.0 J
2.9 J
4.4 J
7.3 J

Answer 1

It begins with 7.3 joules of energy and it will at 4.4 joules when it .5 meters which means 7.3j-4.4j shows how much kinetic wnergy it used so it used 2.9 joules