A) 15 m/s
B) 11.2 m/s
C) 20 m/s
D) 18 m/s
E) 22.4 m/s
Correct Answer: B
Solution :
The relation between centripetal force and frictional force is \[F=\mu mg=\frac{m{{v}^{2}}}{r}\] \[v=\sqrt{\mu gr}=\sqrt{0.67\times 9.8\times 20}\] \[=11.2m/s\]You need to login to perform this action.
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