A particle moves along circle of radius `((20)/(pi))` m with constant tangential acceleration. If the speed of the particle is `80 m//s` at the end of the second revolution after motion has begun, the tangential acceleration is

Options

A. `160 pi m//s^(2)`
B. `140 pi m//s^(2)`
C. `40 m//s^(2)`
D. `640 pi m//s^(2)`

Answer

C