7. A 60.0 kg person jumps from rest from a 10.0-meter diving platform into the pool below. a. What is the diver’s gravitational potential energy when standing atop the platform? b. What is the diver’s gravitational potential energy the instant before they hit the water? c. How much kinetic energy does the diver possess at impact? d. What is the diver’s velocity at impact? You must calculate these quantities using work, energy, etc, not kinematics! e. If the diver jumped from a platform that was twice as high, how many times greater would be their velocity at impact? f. How much higher would the platform have to be for the diver’s velocity to be twice as great as it was when jumping from the 10.0-meter platform?