A) \[Mg\]
B) \[\mu Mg\]
C) \[2\mu Mg\]
D) zero
Correct Answer: D
Solution :
Frictional resistance\[=\mu R\] For a lift falling freely, reaction\[=m(g-g)=0\] \[\therefore \] frictional force\[=0\]You need to login to perform this action.
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