Question

If a car of mass 1100 kg is moving along a highway at 88 km/h, what is the car's kinetic energy as determined by someone standing alongside the highway?

Answer 1

Remember the equation for kinetic energy is:
\[E _{K}=\frac{ 1 }{ 2 }mv^2\]
You have mass and velocity, just make sure they are in the correct units and you can use this equation to get your answer.