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Two identical balls are approaching towa...

Two identical balls are approaching towards each other on a straight line with velocity `2m//s` and `4m//s`, respectiely. Find the final velocities after elastic collision between them.

Text Solution

Verified by Experts

The two velocities will be exchanged and the final motion is the reverse of the initial motion for both.
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Knowledge Check

  • Two identical balls A and B moving with velocities + 0.5 m/s and -0.3 .m/s respectively collide head-on elastically. The velocities of the ball A and B after collision will be respectively

    A
    ` + 0.5 m//s and + 0.3 m//s `
    B
    ` - 0.3 m//s and + 0.5 m//s `
    C
    ` + 0.3 m//s and + 0.5 m//s
    D
    `-0.5m//s and + 0.3 m//s `

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