A chain with mass density σ kg/m lies in a heap on the floor, with one end attached to a block of mass M. The block is given a sudden kick and instantly acquires a speed V0. Let x be the distance...

A chain with mass density σ kg/m lies in a heap on the floor, with one end attached to a block of mass M. The block is given a sudden kick and instantly acquires a speed V0. Let x be the distance traveled by the block. In terms of x, what is the tension in the chain, just to the right of the heap; that is, at the point P shown in Fig. 5.53? There is no friction in this problem; none with the floor, and none in the chain with itself