Question

Calculate the kinetic energy in joules of a 1200 kg automobile moving at 18 m/s .

Answer 1

1/2(mass)(velocity)^2= has 194,400 Joules of Kinetic Energy

Answer 2

194,400 joules of kinetic energy.

Step-by-step explanation:

Remember that to calculate the Kinetic energy you need to use the next formula:

`Ke=(1)/(2)Mass*Velocity^2`

We know that Mass= 1200 kg and velocity is 18m/s, so we insert those values into the formula:

`Ke=(1)/(2)Mass*Velocity^2\\Ke=(1)/(2)1200kg*(18m/s)^2\\Ke=194,400 joules`

So the kinetic energy of a car moving at 18m/s with a mass of 1200 kg would be 194,400 joules.