A running back has a mass of 812 g and is running at a velocity of 9 m/s. How many joules of kinetic energy does the running back have while in motion?
pretty small running back ...
K.E. = 1/2 m v^2 = 1/2 * .812 * 9^2 ... J
K.E. = 1/2 m v^2 = 1/2 * .812 * 9^2 ... J