Physics - NLM Question with Solution | TestHub

The system shown in the figure is initially at origin and is moving with a velocity $\left(5{\mathrm{ms}}^{-1}\right)\hat{\mathrm{k}}$. A force( 120 t newton) $\hat{\mathrm{i}}$ acts on mass ${\mathrm{m}}_2$, where t is time in seconds. The man throws a ball of very small mass, at the instant when ${\mathrm{m}}_1$ starts slipping on ${\mathrm{m}}_2$, with a velocity $10{\mathrm{ms}}^{-1}$ vertically up w.r.t himself. Taking the masses of blocks and man as 60 kg each and assuming that the man never slips on ${\mathrm{m}}_2$. Take $\mathrm{g}=10{\mathrm{ms}}^{-2}$ and neglect the dimensions of the system.