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?
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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Transcribed Image Text: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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