Question

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

A roller coaster car is traveling down a track at 22 m/s. The car has a mass of 2000 kg. What is the Kinetic energy of the car?

Answer 1

Blu ! The formula is right THERE, IN the question. All you have to do is plug numbers into it.

The formula: Kinetic Energy = 1/2 m v²

' m ' is 2,000 kg

' v ' is 22 m/s

Now pluggum in:

KE = (1/2) (2,000 kg) (22 m/s)²

KE = (1/2) (2,000 kg) (22 m/s x 22 m/s)

KE = (1/2) (2,000 kg) (484 m²/s²)

I'm sure you can finish it off from this point, and pick the correct choice.