A particle moves in a circle of radius 5cm with constant speed and time period 0.2πs. The acceleration of the particle is :

5 m/s2 15 m/s2 25 m/s2 36 m/s2

5 m/s2

a = \(\omega^2R = [\frac{2\pi}{0.2\pi}]^2 × (5×10^{-2})\) a = 5 m/s2