Work Energy And Power Question 223

Question: Two bodies of masses 4 kg and 5 kg are moving with equal momentum. Then the ratio of their respective kinetic energies is

Options:

A) $ 4:5 $

B) $ 2:1 $

C) $ 1:3 $

D) $ 5:4 $

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Kinetic energy of a body, $ K=\frac{P^{2}}{2m} $ As $ {p_1}=p_2 $

(Given)
$ \therefore \frac{K_1}{K_2}=\frac{m_1}{m_2}=\frac{5}{4} $



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