(8%) Problem 4: Planet 1 has mass 3M and radius R, while Planet 2 has mass 4M and radius 2R They are separated by center to center distance 8R A rock is placed halfway between their centers at point. It is released from rest, and you may ignore any motion of the planets BR 2R R 4M ЗМ otheexpertta.cor * 25% Part (a) Derive an expression, in terms of relevant system parameters, for the magnitude of the acceleration a of the rock at the moment it is released MR X Attempts Rain * 25% Part (b) Calculate the magnitude of the acceleratiom of the rock (in m/s2) the moment it is released, using M-2x10 kg and R= 25 » 106km 1-25 10 -2.5E 7 X Attempts Real * 25% Part (The rock is released from rest at point o Derive an expression for the speed v with which the rock crashes into a planet (2/3) MR X Attempts * 25% Part (d) Calculate the speed the rock crashes into the planet in m/s V1886 Grade Summary Deductions 0 Potential 1004