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
A
62.50ms-2
B
31.25ms-2
C
12.50ms-2
D
10.00ms-2
Verified Correct Answer: C.
Physical Principles & Numerical Solution
\(\alpha = \omega^2\)r
= 5\(^2\) x 2.5 = 25 x 2.5 = 62.5ms\(^{-2}\)
Source: Myschool Past Questions Archive (Record #34635)