A grinding wheel of radius spins at

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

Problem

A grinding wheel of radius

0.25\,\text{m}

spins at

90\,\text{rev}\!\big/\!\text{min}

. What is the linear speed, in metres per second, of a point on the edge of the wheel? (a)

4.7\,\text{m}/\text{s}

(b)

1.2\,\text{m}/\text{s}

(c)

2.4\,\text{m}/\text{s}

(d)

24\,\text{m}/\text{s}