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

A particle moves along circle of radius ((20)/(pi)) m with constant ta

1.	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
Answer» `160 pi m//s^(2)` `140 pi m//s^(2)` `40 m//s^(2)` `640 pi m//s^(2)` Answer :C