# What is the kinetic energy of an object with a mass of #3 kg# that has been in freefall for #2 s#?

##### 1 Answer

May 26, 2018

#### Answer:

E_k =600 J

#### Explanation:

from the first movument law

but s°=0 and v° = 0 so

the kinetic energy is like the potential energy lost

otherwise you can have also