Work Energy And Power Question 81

Question: Two perfectly elastic particles P and Q of equal mass travelling along the line joining them with velocities 15 m/sec and 10 m/sec. After collision, their velocities respectively (in m/sec) will be [CPMT 1988; MP PMT 1994]

Options:

A) 0, 25

B) 5, 20

C) 10, 15

D) 20, 5

Show Answer

Answer:

Correct Answer: C

Solution:

For a collision between two identical perfectly elastic particles of equal mass, velocities after collision get interchanged.



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