Two blocks are connected by a light string and accelerated upward by a pulling force F. The mass of the upper block is 50.0 kg and that of the lower block is 100 kg. The upward acceleration of the system as a whole is 1.50 m/s2. Neglect the mass of the string.
(a) Draw the free-body diagram of each block. Use the diagrams to determine which of the following is true for the magnitude of the string tension T compared to other forces: (1) T > w2 and T < F; (2) T > w2 and T > F; (3) T < w2 and T < F; or (4) T = w2 and T < F?
(b) Apply Newton’s laws to find the required pull, F.
(c) Find the tension in the string, T.

  • CreatedAugust 29, 2015
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