Jesse E. answered 08/20/19
Experienced tutor for TEAS, chemistry, and biology
Let's look at the Kinetic Energy equation:
KE = 1/2mv2
In this equation, notice that the velocity, or speed, is squared. Therefore, because the speed of the car , doubled as it accelerated from 30 m/s to 60 m/s, this value will be squared. Therefore, the Kinetic Energy of the car's speed at the final time will be quadrupled in comparison to the car's initial speed.