An object moves with constant acceleration

PHYSICS · Single correct · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line

Problem

\mathbf{a}

. Which of the following expressions is also constant? (1)

\frac{d|\mathbf{v}|}{dt}

(2)

\left|\frac{d\mathbf{v}}{dt}\right|

(3)

\frac{d(v^2)}{dt}

(4)

\frac{d\left(\frac{\mathbf{v}}{|\mathbf{v}|}\right)}{dt}