e Extension Question A different group is worried that the motion detector will not effectively track the falling object. so they decide to roll a round object down a ramp instead of dropping it. They measure the initial height to calculate gravitational potential energy, use the motion detector to track the final velocity. and calculate the kinetic energy of the object at the end. Despite all their careful measurements. it appears that energy is not conserved! The object is not moving as fast at the bottom as the initial gravitational potential would have led them to predict. Which of the following suggestions is possible? Select all that apply. There is rotational energyr in the system when the mass reaches the bottom because it is rolling. |:| Energy may still be leaving the system through friction. There could be measurement error that accounts for the missing energy. Even though friction is diminished. air resistance could still be having an effect on the total energy