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Two cars are moving with same velocity o...

Two cars are moving with same velocity of `30kmh^(-1)` maintaining a distance of 5 km between them. Speed of a third car moving in the opposite direction and meeting the two cars at an interval of 240s is

A

`45kmh^(-1)`

B

`30kmh^(-1)`

C

`55kmh^(-1)`

D

`35kmh^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Time interval `t=("Distance between cars")/("relative velocity")=s/(v_(m)+30)`
`v_(m)to` Velocity of 3rd car `240/3600=5/(v_(m)+30)impliesv_(m)=45`km/hr
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