Question

The angular velocity of a rotating disk increases from 2 rad/s to 5 rad/s in 0.5s. What is the disk's average angular acceleration?
A. 67 rad/s2
B. 46 rad/s2
C. 36 rad/S2
D. 6 rad/s2​

Answer 1

Answer:

OPTION :- D

Explanation:

By definition

a¯=ΔωΔt=(5−2)rad/s0.5s=6rad/s2.