A wheel initially rotating at is subjected to an angular acceleration of for and…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

A wheel initially rotating at

6\,\text{rad s}^{-1}

is subjected to an angular acceleration of

2\,\text{rad s}^{-2}

for

4\,\text{s}

and immediately after to

-3\,\text{rad s}^{-2}

for

2\,\text{s}

. Calculate its final angular velocity. (a)

0\,\text{rad s}^{-1}

(b)

14\,\text{rad s}^{-1}

(c)

8\,\text{rad s}^{-1}

(d)

-2\,\text{rad s}^{-1}