JEE MAIN - Physics (2024 - 27th January Morning Shift - No. 9)
Two bodies of mass $$4 \mathrm{~g}$$ and $$25 \mathrm{~g}$$ are moving with equal kinetic energies. The ratio of magnitude of their linear momentum is :
$$3: 5$$
$$5: 4$$
$$2: 5$$
$$4: 5$$
Vysvětlení
$$\begin{aligned}
& \frac{\mathrm{P}_1^2}{2 \mathrm{~m}_1}=\frac{\mathrm{P}_2^2}{2 \mathrm{~m}_2} \\
& \frac{\mathrm{P}_1}{\mathrm{P}_2}=\sqrt{\frac{\mathrm{m}_1}{\mathrm{~m}_2}}=\frac{2}{5}
\end{aligned}$$