A) 84.6 minutes
B) 42.3 minutes
C) 1 day
D) Will not reach the other end
Correct Answer: B
Solution :
Ball execute S.H.M. inside the tunnel with time period \[T=2\pi \sqrt{\frac{R}{g}}=84.63\ \min \] Hence time to reach the ball from one end to the other end of the tunnel \[t=\frac{84.63}{2}=42.3\ \min .\]You need to login to perform this action.
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