Answer to Question #168529 in Physics for akiesya

Question

if an object of mass 15kg is travelling at 5m/s, how much kinetic energy does it have?

Answer 1

$$KE=\dfrac{1}{2}mv^2,$$ $$KE=\dfrac{1}{2}\cdot15\ kg\cdot(5\ \dfrac{m}{s})^2=187.5\ J.$$