Which expression gives the magnitude of the linear (tangential) speed of a point that…

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

Problem

Which expression gives the magnitude of the linear (tangential) speed

v

of a point that is a distance

r

from the axis of rotation when the object has angular speed

\omega

? (a)

v = 2\pi r\omega

(b)

v = \dfrac{r\omega}{2\pi}

(c)

v = r\omega

(d)

v = \dfrac12 r\omega