A) \[5\,N\]
B) \[10\,N\]
C) \[15\,N\]
D) \[20\,N\]
Correct Answer: B
Solution :
Here, \[{{m}_{A}}=0.5\,kg;\,\,\,\,\,\,{{m}_{B}}=1\,kg\] Force on block A \[T=\mu {{m}_{A}}g\] ......(1) Force acting on block B \[F=T+\mu {{m}_{A}}g+\mu ({{m}_{A}}+{{m}_{B}})g\] ??(2) From (1) & (2), \[F=\mu {{m}_{A}}g+\mu {{m}_{A}}g+\mu {{m}_{A}}g+\mu {{m}_{B}}g\] \[F=3\mu {{m}_{A}}g+\mu {{m}_{B}}g+=\mu g\,(3{{m}_{A}}+{{m}_{B}})\]You need to login to perform this action.
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