Physics - NLM Question with Solution | TestHub

$$\text{ Mass of upper spheres }=\mathrm{r}\times \frac{4}{3}\pi {\mathrm{R}}^3=\mathrm{m}$$

Mass of lower sphere $=\mathrm{r}\times \frac{4}{3}\pi 6{\mathrm{R}}^3=8\mathrm{m}$ at equation $\mathrm{kx}=8\mathrm{mg}$ when string is burnt force in spring wil nto change.

$${\mathrm{a}}_{\text{upper sphere }}=\frac{8\mathrm{mg}+\mathrm{mg}}{\mathrm{m}}=9\mathrm{g}\downarrow$$

${\mathrm{a}}_{\text{lower sphere }}=0$ as force in spring doesn't change instantaneously