A wheel rotates with constant angular acceleration?

Question

to an angular speed of 17.3 rad/s in 2.46 s. It started from rest.

A) What is the magnitude of the angular acceleration of the wheel in units of rad/s^2?

B) What is the angle in radians through which it rotate in this time (in units of rad)?

Answer 1

basic plug and chug,

A) alpha=(w2-w1)/(t2-t1)

B) theta=(alpha*t^2)/2+w1*t