Question

Determine the kinetic energy of a 659 kg roller coaster car that is moving with a speed of 12.5 m/s.

Answer 1

Kinetic energy equation is given:

$KE = \frac{1}{2}mv^2$

Substituting our known variables, we get:

$KE = \frac{1}{2}(659)(12.5^2)$

KE = 51484.375J

Hope this helps!