Answered: 4.57 CP Two boxes, A and B, are… | bartleby

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4.57 CP Two boxes, A and B, are connected to
each end of a light vertical rope, as shown in
Fig. P4.57. A constant upward force F =
80.0 N is applied to box A. Starting from rest,
box B descends 12.0 m in 4.00 s. The tension in
the rope connecting the two boxes is 36.0 N.
(a) What is the mass of box B? (b) What is the
mass of box A?

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