A) 0.4
B) 0.2
C) 0.6
D) 0.8
Correct Answer: B
Solution :
We know \[s=\frac{{{u}^{2}}}{2\mu \ g}\] \[\therefore \] \[\mu =\frac{{{u}^{2}}}{2gs}=\frac{{{(6)}^{2}}}{2\times 10\times 9}=0.2\]
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