A) 60
B) 30
C) 15
D) 25
Correct Answer: B
Solution :
Using the relation \[\frac{m{{v}^{2}}}{r}=\mu R,\] \[{{v}^{2}}=mg\] \[\frac{m{{v}^{2}}}{r}=\mu mg\] or \[{{v}^{2}}=\mu rg\] Or \[{{v}^{2}}=30\,m/s\]You need to login to perform this action.
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