2. 2. A 4.88 kg rock falls 12.0 meters to the ground from the side ofa cliff. 2.{a} How much potential energy is liberated from this rock fall: (i) on Earth? {ii} on the moon? [You will need to rst determine 'little g' for the lunar surface, for Earth we use the usual magnitude of g = 9.8111155? Show your work when calculating 'g' for the 1noo11.] 2.01} How much kinetic energy is gained by this rock fall just before impact: (i)- on Earth? (ii) on the moon? (Assume no energy losses due to air resistance on Earth.) 2.{c} Use your answers oni {[1} to determine the rock's nal (impact) velocity: (i) on Earth, (ii) on the moon. [Assume no energy losses due to air resistance on Earth.) 2.{d} If the rock's final (impact) velocity on Earth was only 94.1% of the velocity you determined in part (c), then how much energy was lost due to air resistance? 2.{c} How long does it take the rock to fall: (i) on Earth? (ii) on the moon? (Assume no air resistance on Earth.) 2.{f) "What is the power of this energy transfer, for the 'roek fall' described above, where gravitational potential energy is converted into kinetic energy: (i) on Earth? (ii) on the moon? (Assume no air resistance on Earth.) 2,-{g} Show how 'little g' for the surface acceleration on Earth versus the moon can be used to determine the ratios of the results in {a}. (e) and (t)