Question 3.7

Q 3.7: An electron (m = 9.1 * 10(-31)kg) traveling at 2 * 10(7)m/s undergoes a head on collision with a hydrogen atom (m = 1.67 * 10(-27)kg), which is initially at rest. Assume the collision to be perfectly elastic and motion to be a straight line, find the velocity of hydrogen atom.

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