The speed of a particle moving in a circle of radius varies with time as in SI units

PHYSICS · Subjective · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

The speed of a particle moving in a circle of radius

2\,\text{m}

varies with time as

v=2t

in SI units. At

t=1\,\text{s}

, match the following two columns:

Column I	Column II (SI units)
(a) $\mathbf{a}\cdot\mathbf{v}$	(p) $2\sqrt{2}$
(b) $\mathbf{a}\times\boldsymbol{\omega}$	(q) $2$
(c) $\mathbf{v}\cdot\boldsymbol{\omega}$	(r) $4$
(d) $\mathbf{v}\times\mathbf{a}$	(s) none

Here, symbols have their usual meanings.