A) \[\sqrt{2}m/s\]
B) \[\sqrt{2\times 9.8}m/s\]
C) 4.43 m/s
D) \[1/\sqrt{2}m/s\]
Correct Answer: B
Solution :
Velocity of bob \[v=\sqrt{2gl(1-cos\theta )}\] \[=\sqrt{2\times 9.8l(1-\cos {{60}^{o}})}\] \[v=\sqrt{2\times 9.8}\,m/s\]You need to login to perform this action.
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