Question

When you triple the speed of a car, the force of impact is _________ times greater.

a) Nine
b) Six
c) Four
d) Seven

Answer 1

When you triple the speed of a car, the force of impact is nine times greater.

Step-by-step explanation:

When you triple the speed of a car, the force of impact is nine times greater. This is because the force of impact depends on the car's kinetic energy, which is proportional to the square of its velocity. When the velocity is tripled, the kinetic energy is multiplied by nine.