Question

If you double your speed on a highway, your braking distance will be ________ as long.

a.) five times

b.) three times

c.) four times

d.) twice

Answer 1

If you double your speed on a highway, your braking distance will be four times as long. Option c.

Step-by-step explanation:

If you double your speed on a highway, your braking distance will be four times as long. When you double your speed, your kinetic energy increases by a factor of four. This means that you will require four times the distance to come to a stop. When the speed on a highway is doubled, the braking distance becomes four times as long due to the quadratic relationship between speed and stopping distance governed by kinetic energy.

If you double your speed on a highway, your braking distance will be four times as long. This is because braking distance is proportional to the square of the speed of the vehicle. When you double the speed, the stopping distance becomes four times greater due to the physics of kinetic energy and the work-energy principle.