Question

The angular velocity of a particle moving in a circle of radius 50 cm is increased in 5 minutes from 100rpm to 400rpm. By what amount , has radial acceleration of the particle changed during these 5 minutes.

Answer 1

Answer:

Radial accelration or angular accelration changes by 60rev/min²

Explanation:

The pic shows the step by step explanation.

To change formula from revolution to cm you can use expression

rev = 2πr

which means

acceleration becomes form 60 $\frac{rev}{min^{2} }$  to 376.98 $\frac{cm}{min^{2} }$