1.

The figure shows a pulley mass system which is kept in an elevator moving up with acceleration g. Then the tension T in the string is given by

A. \[\frac{{{m}_{1}}{{m}_{2}}g}{{{m}_{1}}+{{m}_{2}}}\]
B. \[\frac{2{{m}_{1}}{{m}_{2}}g}{{{m}_{1}}+{{m}_{2}}}\]
C. \[\frac{4{{m}_{1}}{{m}_{2}}g}{{{m}_{1}}+{{m}_{2}}}\]
D. \[\frac{({{m}_{1}}-{{m}_{2}})g}{{{m}_{1}}+{{m}_{2}}}\]
Answer» D. \[\frac{({{m}_{1}}-{{m}_{2}})g}{{{m}_{1}}+{{m}_{2}}}\]


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