Question

The frequency of a a partial performing 4 cm
changes from 60rpm to 180rpm in 20 sec
calculate angular acceleration​

Answer 1

Explanation:

Given that

convert 60rpm into 1rad/s

and convert 180rpm into 3 rad/s

thus a is equal to 3rad/s- 1rad/s/20

2/20

1/10

0.1