prob_108 - 108. REASONING AND SOLUTION a. The rope exerts a...

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108. REASONING AND SOLUTION a. The rope exerts a tension, T , acting upward on each block. Applying Newton's second law to the lighter block (block 1) gives T m 1 g = m 1 a Similarly, for the heavier block (block 2) T m 2 g = – m 2 a Subtracting the second equation from the first and rearranging yields 2 21 3.68 m/s mm ag ⎛⎞ == ⎜⎟ + ⎝⎠ b. The tension in the rope is now 908 N since the tension is the reaction to the applied force exerted by the hand. Newton's second law applied to the block is
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