question_answer

Two point particles A and B are placed in line on a frictionless horizontal plane. If particle A (mass 1 kg) is moved with velocity 10 m/s towards stationary particle B (mass 2kg) and after collision they move at an angle of \[45{}^\circ \]with the initial direction of motion, then the velocity of particle B just after collision is found to be \[\frac{x}{\sqrt{2}}m/s\].

Answer:

5.00