A particle moves in a circle of radius 25 cm at two revolutions per sec. The acceleration of the particle in `m//s^(2)` is:

Options

A. `12 pi ^(2)`
B. `8pi^(2)`
C. `4pi^(2)`
D. `2 pi^(2)`

Answer

C

Explanation

`a=romega^(2)`
`=r4pi^(2)n^(2)`
`=0.25xx4pi^(2)xx4=4pi^(2)`