A ball having a mass of 500 grams is dropped from a height of
9.00 meters. What is its kinetic energy when it hits the ground?

Question

A ball having a mass of 500 grams is dropped from a height of 
9.00 meters. What is its kinetic energy when it hits the ground?

turingtest · Answer

what is the kinematic equation that relates velocity, acceleration, and distance?

anonymous · Answer

i think its KE1+PE1=KE2+PE2, is it?

turingtest · Answer

That will also work, but that is not a kinematic equation but rather conservation of energy.

Doing it your way, what are KE1 and PE1 ?

anonymous · Answer

I dont know i just saw them in the notes, before taking this test..

anonymous · Answer

i guessed the answer an i got it right :P haha thanks tho (: