A tennis ball is hit over a net with a speed of 45ms^-1 and has a mass of 30g. Calculate the kinetic energy of tennis ball.
K=0.5mv^2 K=0.50.03*(45^2) K=30.4J
LM
Related Physics GCSE answers
All answers ▸Draw a graph depicting a skydivers speed against time when jumping from a plane, until he deploys his parachute, explaining the logic of your answer through the forces applicable to the body.
When is a system in equilibrium?
When a force is applied to a spring, the spring extends by 12cm. The spring has a spring constant of 25 N/m. Calculate the force applied to the string in N.
Why does your hair stand on end when you touch a Van de Graaff generator?