A car moves four times as fast as an identical car. Compared to the slower car, the faster car has

Name: A car moves four times as fast as an identical car. Compared to the slower car, the faster car has
Brand: Quizplus
Rating: 4.9 (46 reviews)

Question

Quizplus · Accepted Answer

The kinetic energy (KE) is given by the formula KE = 1/2 mv^2, where m is the mass and v is the velocity. If the faster car moves four times as fast, its velocity is 4v. Substituting into the formula gives KE = 1/2 m(4v)^2 = 1/2 m(16v^2) = 16 times the kinetic energy of the slower car.

A Car Moves Four Times as Fast as an Identical