Use energy conservation to find the approximate nal speed of a basketball dropped from a height of 1.94 m (roughly the height of a professional basketball player). m/s Why don't you need to know the mass of the basketball? O The mass of the basketball is small enough compared to that of the basketball player that it is negligible. 0 The mass is not important because the ball starts from rest. The kinetic and potential energies of the ball are each proportional to its mass, so the mass term cancels out. 2? Additional Materials E] eBook