Physics - W.E.P. Question with Solution | TestHub

Here kinetic energy$\text{K}=\frac{1}{2}{\text{mv}}^2=\text{a}{\text{s}}^2$

∴  mv²= 2as²...(i)

Differentiating eqn (i) w.r.t. to time t, we get

$2\text{mv}\frac{\text{dv}}{\text{dt}}=4\text{as}\frac{\text{ds}}{\text{dt}}=4\text{asv}\text{or}\text{m}\frac{\text{dv}}{\text{dt}}=2\text{as}$