A) \[\frac{10}{\pi }m/{{s}^{2}}\]
B) \[10\,\,m/{{s}^{2}}\]
C) \[10\pi \,\,m/{{s}^{2}}\]
D) \[Zero\]
Correct Answer: A
Solution :
Change in velocity when the particle completes half revolution is \[\Delta v=5-(-5)\] \[=10\,\,m/s\] Time taken in completing half revolution is \[T=\frac{\pi r}{v}=\frac{\pi \times 5}{5}=\pi \]second Hence, average acceleration when particle completes half revolution \[{{a}_{av}}=\frac{\Delta v}{T}=\frac{10}{\pi }m/{{s}^{2}}\]You need to login to perform this action.
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