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Tuesday, 07 April 2026
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A body is rotating in a horizontal circle of radius 2.5m with an angular speed of 5 rad ...

A body is rotating in a horizontal circle of radius 2.5m with an angular speed of 5 rad s-1. Calculate the magnitude of the radial acceleration of the body
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  • A 62.50ms-2
  • B 31.25ms-2
  • C 12.50ms-2
  • D 10.00ms-2
Correct Answer: Option C
Explanation:
\(\alpha = \frac{W_2 - W_1}{t} = \frac{5}{1} = 5 rad\)/s2
9 = \(\alpha\)r
= 5 x 2.5 = 12.50m\s2

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