Physics - Kinematics Question with Solution | TestHub

The figure shows the velocity and the acceleration of a point like body at the initial moment of its motion. The direction and the absolute value of the acceleration remain constant. Find the time in seconds when the speed becomes minimum. (Given : $\mathrm{a}=4\mathrm{m}/{\mathrm{s}}^2,{\mathrm{v}}_0=40\mathrm{m}/\mathrm{s},\phi =143^{\circ }$ )