A) 9.2 kg
B) 20 kg
C) 40 kg
D) 51 kg
Correct Answer: A
Solution :
[a] Free body diagram at start Free body diagram when \[a=0\] \[{{m}_{1}}g-{{F}_{c}}={{m}_{1}}a;\text{ }{{F}_{c}}={{m}_{1}}\left( g-a \right)\] \[{{F}_{c}}={{m}_{2}}g=0;\text{ }{{\text{F}}_{c}}={{m}_{2}}g\] \[{{m}_{1}}\left( g-a \right)={{m}_{2}}g\] \[{{m}_{2}}=\frac{{{m}_{1}}\left( g-a \right)}{g}=50.8\text{ kg;}\]You need to login to perform this action.
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