Two perfectly elastic particles A and B of equal masses travelling along the line joining them with velocity 15 m/s and 10 m/s respectively collide. Their velocities after the elastic collision will be (in m/s) respectively

0 and 25

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5 and 20

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10 and 15

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20 and 5

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Solution

The correct option is C 10 and 15
Two identical bodies exchange their velocities after a perfectly elastic head on collision. Thus the first body will move with a velocity $10 m / s$ while the second identical body will move with a velocity $15 m / s$ .

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Two perfectly elastic particles A and B of equal masses travelling along the line joining them with velocity 15 m/s and 10 m/s respectively collide. Their velocities after the elastic collision will be (in m/s) respectively

The correct option is C 10 and 15Two identical bodies exchange their velocities after a perfectly elastic head on collision. Thus the first body will move with a velocity 10 m/s while the second identical body will move with a velocity 15 m/s.

The correct option is C 10 and 15
Two identical bodies exchange their velocities after a perfectly elastic head on collision. Thus the first body will move with a velocity $10 m / s$ while the second identical body will move with a velocity $15 m / s$ .