Acar traveling at 60 mph has how much more energy than a car going at 20 mph? ke increases by a factor of 1/3 1/9 3 9

9

Explanation:

The kinetic energy of a car is given by

where

m is the mass of the car

v is its speed

In this case, the kinetic energy of the car moving at 20 mph is

While the kinetic energy of the car moving at 60 mph is (assuming same mass m)

The ratio between the two kinetic energies is:

So, the faster car has a kinetic energy which is 9 times more than the slower car.

gravity

explanation:

the answer for apex is the lowest