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

Options

A. `160pim//s^(2)`
B. `40pim//s^(2)`
C. `40pim//s^(2)`
D. `640pim//s^(2)`

Answer

b