Question
Physics Question on The Angular Momentum
The angular speed of a motor wheel is increased from 1200 r.p.m. to 3120 r.p.m. in 16 s. What is its angular acceleration?
A
π rad/s2
B
2π rad/s2
C
3π rad/s2
D
4π rad/s2
Answer
4π rad/s2
Explanation
Solution
The correct option is (D)