Hi please help with the following: Two blocks are connected by a light string passing over a light, frictionless pulley as shown below. The masses of the two blocks are: m1= 6.3 kg, m2= 2.7kg. The 2.7-kg block initially rests on the floor, while the 6.3-kg block is released from rest at a point h= 8.0 m above the floor. Choose the floor to be reference level for the calculation of the gravitational potential energy.  A. Determine the total potential energy of the blocks at the moment when they pass each other B. Determine the speed of the two blocks at the moment when they pass each other

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