WAEC - Physics (2006 - No. 6)
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
62.50ms-2
31.25ms-2
12.50ms-2
10.00ms-2
ব্যাখ্যা
\(\alpha = \omega^2\)r
= 5\(^2\) x 2.5 = 25 x 2.5 = 62.5ms\(^{-2}\)