Question

Two masses of 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their momenta is

• A. 4:01
• B. $\sqrt2 : 1$
• C. 1:02
• D. 1:16

Answer 1

Answer: (C)

1:02

Answer 2

$p=\sqrt{2Km} \, \, \, \, or \, \, \, \, p = \sqrt m,$
\hspace15mm \frac{m_1}{m_2}=\frac{1}{4} \, \, \, \Rightarrow \, \, \therefore \, \, \, \frac{p_1}{p_2}=\frac{1}{2}