A) 24.6 m/s2
B) 12.3 m/s2
C) 6.15 m/s2
D) 49.2 m/s2
Correct Answer: B
Solution :
Circumference of the circle\[=2\pi r\] \[=2\times 3.14\times 5\] \[=31.4m\] Velocity,\[v=\frac{31.4}{4}=7.85\text{ }m/s\] Acceleration, \[a=\frac{{{v}^{2}}}{r}=\frac{7.85\times 7.85}{5}\] \[\approx 12.3\,m/{{s}^{2}}\]You need to login to perform this action.
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