Question

A particle moves uniformly in a circle of radius 25 cm at two revolution per second find the acceleration of the particle in metre per second square

Answer 1

R = 25 cm = 0.25 m = 1÷4

F = 2 r p s

A = r 4 pi ^2 f ^2

= 1÷4 pi ^2 × 4

= pi ^2