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A train is moving eastwards with a veloc...

A train is moving eastwards with a velocity of `10 ms^-1`. On a parallel truck another train passes with a velocity of `15 ms^-1` eastwards, To the passengers in the second train, the first train will appear to be moving with a velocity.

A

`5 ms^-1` westwards

B

`5 ms^-1` eastwards

C

`20 ms^-1` westwards

D

`25 ms^-1` eastwards

Text Solution

Verified by Experts

The correct Answer is:
A
`vec v_(AB) = vec v_A - vec v_B = 10 -15`
=` -5 m//s`.
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