A) \[\alpha >\frac{mg}{\mu }\]
B) \[\alpha >\frac{g}{\mu m}\]
C) \[\alpha \ge \frac{g}{\mu }\]
D) \[\alpha <\frac{g}{\mu }\]
Correct Answer: C
Solution :
When a cart moves with some acceleration toward right then a pseudo force (ma) acts on block toward left. This force (ma) is action force by a block on cart Now, block will remain static w.r.t. cart, if frictional force \[\mu R\ge mg\] \[\Rightarrow \] \[\mu \,m\alpha \,\ge mg\] \[[as\,R\,=m\alpha ]\] \[\Rightarrow \] \[\alpha \ge \frac{g}{\mu }\]You need to login to perform this action.
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