Work Energy And Power Question 118
Question: A big ball of mass M, moving with velocity u strikes a small ball of mass m, which is at rest. Finally small ball obtains velocity u and big ball v. Then what is the value of v [RPET 2001]
Options:
A) $ \frac{M-m}{M+m}u $
B) $ \frac{m}{M+m}u $
C) $ \frac{2m}{M+m}u $
D) $ \frac{M}{M+m}u $
Show Answer
Answer:
Correct Answer: A
Solution:
From the formulae $ v_1=( \frac{m_1-m_2}{m_1+m_2} )\ u_1 $ We get $ v=( \frac{M-m}{M+m} )\ u $
