Review. As shown in Figure P8.26, a light string that does not stretch changes from horizontal to vertical as it passes over the edge of a table. The string connects m1 , a 3.50- kg block originally at rest on the horizontal table at a height h = 1.20 m above the floor, to m2 , a hanging 1.90-kg block originally a distance d = 0.900 m above the floor. Neither the surface of the table nor its edge exerts a
the string so that it does not go taut while m1
is in flight? (d) Is the energy of the system
when it is released from rest equal to the energy of the system just before m1 strikes the
ground? (e) Why or why not?
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