A) \[4\sec \]
B) \[2\sec \]
C) \[3\sec \]
D) \[1\sec \]
Correct Answer: B
Solution :
\[T=2\pi \sqrt{\frac{\ell }{{{g}_{e}}}}\] Where \[{{g}_{e}}=\frac{Tension\,\,equilibrium}{m}\] \[=\frac{mg+ma(pseudo)}{m}=g+3g=4g\] \[T=2\pi \sqrt{\frac{\ell }{4g}}=\frac{1}{2}\left( 2\pi \sqrt{\frac{\ell }{g}} \right)=\frac{1}{2}\times 4=2\sec \]You need to login to perform this action.
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