Physics - NLM Question with Solution | TestHub

If ${\mathrm{F}}_1=9\mathrm{N}$ and ${\mathrm{F}}_2=0$, then both the blocks move together with common acceleration $3\mathrm{m}/{\mathrm{s}}^2$

If ${\mathrm{F}}_1=9\mathrm{N}$ and ${\mathrm{F}}_2=0$, then frictional force on 1 kg will be along the direction of force.

If ${\mathrm{F}}_1=0$ and ${\mathrm{F}}_2=36\mathrm{N}$, both the blocks move together with common acceleration $12\mathrm{m}/{\mathrm{s}}^2$.

If ${\mathrm{F}}_1=1\mathrm{N}$ and ${\mathrm{F}}_2=2\mathrm{N}$, frictional force will not be acting on both the blocks.