If we know the total energy in a system is 30 J, and we know the PE is 20 J, what is the KE?

1 Answer
Apr 20, 2018

The Kinetic Energy in the system is 10 J

Explanation:

The total mechanical energy in a closed system is always the sum of the potential and the kinetic energies.

KE+PE=TE

KE=TE-PE

KE=30J-20J

KE=10J