A) 4 m/s
B) 5 m/s
C) 6 m/s
D) 7 m/s
Correct Answer: B
Solution :
Tension\[T=mg+\frac{m{{\upsilon }^{2}}}{r}\] \[52=0.2\times 10+\frac{02\times {{\upsilon }^{2}}}{0.1}\] \[50=2{{\upsilon }^{2}}\] \[{{\upsilon }^{2}}=25\Rightarrow \upsilon =5m/s\]You need to login to perform this action.
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