Question

A 0.5 kg car is moving at a constant velocity 5 m/s. What is the kinetic energy of the car?

Answer 1

Using this formula
K=(mv^2)/2 where:
K - kinetic energy
m - mass
v - velocity

Just plug in given numbers, and:
K= (0.5*5^2)/2=6.25 J (Joules)