Question

A car has a mass of 2,000 kg and is traveling at 28m/s. What is the car’s kinetic energy?

984,000 J
784,000 J
484,000 J

Answer 1

784,000 J

Step-by-step explanation:

For this question we can simply use the equation for the Kinetic Energy which is :
`(1)/(2) mv^2`, where m = the mass and v = the velocity.

So let's put the values given into the equation.

`K.E = (1)/(2) *2000*(28)^2 = 784000 J`

The car's kinetic energy is 784,000 Joules