A) 20 N
B) 50 N
C) 100 N
D) 2 N
Correct Answer: D
Solution :
Let R be the normal contact force by wall on the block R = 10N, \[{{f}_{L}}\] = w and \[f=\mu R\] For vertical equilibrium of the block, \[\mu R=w\] \[\Rightarrow \] \[w=0.2\times 10=2\,N\]You need to login to perform this action.
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