Question: A neutron having mass of 1.67 × 10−27 𝑘𝑔 and moving at 108𝑚/𝑠 collides with a deutron at rest and sticks to it. If the mass of the deutron is 3.34 × 10−27 𝑘𝑔 then the speed of the combination is
(A) 2.56 × 10^{3} 𝑚/𝑠
(B) 2.98 × 10^{5} 𝑚/𝑠
(C) 3.33 × 10^{7} 𝑚/𝑠
(D) 5.01 × 10^{9} 𝑚/𝑠
Answer: Option (C)
Solution:
