Question

determine the kinetic energy of a 1000-kg roller coaster car that is moving with a soeed if 20.0 m/s.

Answer 1

200000J/200KJ

Explanation:

using k.e=1/2(mv2)

k.e=1×1000×20²/2

k.e=400000/2

k.e=200000J/200KJ