Question

An object has 90000 J of kinetic energy and is moving at 12 m/s. what is the objects mass?

Answer 1

1250kg

Step-by-step explanation:

we can solve this using the formula for the Kinetic Energy

`Kinetic.Energy=(1)/(2)*mass*velocity^(2)\\mass=(2*Kinetic.Energy)/(velocity^(2))\\mass=(2*90000)/(12^(2))\\\\mass=1250kg`