A flywheel turns clockwise at and slows uniformly to while rotating through an…

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

A flywheel turns clockwise at

10\,\text{rev/s}

and slows uniformly to

4\,\text{rev/s}

while rotating through an additional

30

revolutions clockwise. What is the magnitude of its average angular acceleration during this interval? (a)

17.6\,\text{rad/s}^{2}

(b)

1.4\,\text{rad/s}^{2}

(c)

8.8\,\text{rad/s}^{2}

(d)

55\,\text{rad/s}^{2}