Question

The athlete rotates a 1.00-kg discuss along a circular path of radius 1.06 m. The maximum speed of the discus is 20.0 m/s. Determine the magnitude of the maximum radial acceleration of the discus.

Answer 1

Radial acceleration is nothing but centripetal acceleration.

Centripetal Acceleration $= v^2/r$

Where v is magnitude of velocity and r is radius of circular motion.

Substitute the given values of v= 20 ms^-1 , r =1.06 m

$\therefore$ radial acceleration = $400/1.06$ ms^-2= 377.358 ms^-2