Question

What is the kinetic energy of a 620.0 kg roller coaster moving with a velocity of 9.00 m/s?

Answer 1

The kinetic energy of a moving object is calculated through the equation,
                         KE = 0.5mv²
where m is the mass and v is the velocity. 
Substituting the known values,
                         KE = 0.5(620 kg)(9 m/s)²
                           KE = 25,110 J
Thus, the kinetic energy is equal to 25,110 J. 

Answer 2

Answer:

The kinetic energy is equal to 25,110 J.

Explanation: