Author Question: A wheel rotating about a fixed axis has an angular position given by q = 3.0 - 2.0t3, where q is ... (Read 55 times)

ashley · **on:** Jul 28, 2018

A wheel rotating about a fixed axis has an angular position given by q = 3.0 - 2.0t3, where q is measured in radians and t in seconds. What is the angular acceleration of the wheel at t = 2.0 s?
a. -1.0 rad/s2
b. -24 rad/s2
c. -2.0 rad/s2
d. -4.0 rad/s2
e. -3.5 rad/s2

Question 2

At t = 0, a wheel rotating about a fixed axis at a constant angular acceleration of -0.40 rad/s2 has an angular velocity of 1.5 rad/s and an angular position of 2.3 rad. What is the angular position of the wheel at t = 2.0 s?
a. 4.9 rad
b. 4.7 rad
c. 4.5 rad
d. 4.3 rad
e. 4.1 rad