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A railway truck of mass 16000 kg moving ...

A railway truck of mass `16000 kg` moving with a velocity of `5ms^(-1)` strikes another truck of mass `4000 kg` at rest. If they move together after impact, their common velocity is

A

`2ms^(-1)`

B

`4ms^(-1)`

C

`6ms^(-1)`

D

`8ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
`(2)`
`vec v = (m_(1) vec u_(1) + m_(2) vec u_(2)/m_(1) + m_(2)),`
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NARAYNA-WORK , ENERGY & POWER -EXERCISE - 1 (C.W)
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  12. A truck of mass 15 tons moving with 1 ms^(-1) collides with a stationa...

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  13. In the above problem the total KE before collision is

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  14. In the above problem loss of KE during collision is

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  15. A bullet of mass 'x' moves with a velocity y, hits a wooden block of m...

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  17. A ball falls from a height of 10m on to a horizontal plane. If the coe...

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  18. A ball is dropped from a height of 3m. If coefficient of restitution b...

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  19. A glass sphere of mass 5mg, falls from a height of 3 meters on to a ho...

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