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A discus thrower moves the discus in a c...

A discus thrower moves the discus in a circle of radius 80.0 cm. At a certain instant, the thrower is spinning at an angular speed of 10.0 rad/s and the angular speed is increasing at 50.0 rad/`s^(2)`. At this instant, the tangential component of the acceleration of the discus is :

A

`80 m//s^(2)`

B

`50 m//s^(2)`

C

`90 m//s^(2)`

D

`40 m//s^(2)`

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