108. REASONING AND SOLUTIONa. The rope exerts a tension, T, acting upward on each block. Applying Newton's second law to the lighter block (block 1) gives T– m1g= m1aSimilarly, for the heavier block (block 2) T– m2g= – m2aSubtracting the second equation from the first and rearranging yields 221–3.68 m/smmag⎛⎞==⎜⎟+⎝⎠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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