Question: ( 8 pts) A block moves on a frictionless surface with a sufficient initial velocity, v1, at position 1 such that it can just barely

( 8 pts) A block moves on a frictionless surface with a sufficient initial velocity, v1, at position 1 such that it can just barely make it all the way around a loop-de-loop of radius R. (That is, it makes it to position 3 with the minimum velocity needed to complete the loop.) What is the velocity of the block at position 2 , midway up the loop

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