Question

Because of its energy of motion, when a vehicle’s speed doubles, the vehicle needs about
(1 point)
Responses

twice the distance to stop.
twice the distance to stop.

half the distance to stop.
half the distance to stop.

one-fourth the distance to stop.
one-fourth the distance to stop.

four times the distance to stop.

Answer 1

When a vehicle's speed doubles, the vehicle needs about **four times the distance to stop**. This is due to the kinetic energy of the vehicle, which is proportional to the square of its speed. Therefore, if you double the speed, the kinetic energy increases by a factor of four, necessitating four times the stopping distance.