What is the kinetic energy of an object with a mass of 15 kg that has been in freefall for 3 s?

1 Answer
Dec 27, 2015

The kinetic energy is dK=1/2m(at)^2=6496J

Explanation:

You find the final speed on the object v=at
and consider the equation dK=1/2mv^2=6496J
That's all.