In the given figure, a = 15 m / s2 represents the total acceleration of a particle moving in the clockwise direction in a circle of radius R = 2.5 m at a given instant of time. The speed of the particle is
6.2 m / s
4.5 m / s
5.0 m / s
5.7 m / s
Explanation:
$a_c = \dfrac{V^2}{r}$
$15 \cos 30^\circ = \dfrac{V^2}{2.5}$
V2 = 32.73
V = 5.7 m / sec
