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Theif's car is moving with a speed of 10...

Theif's car is moving with a speed of `10` m/s. A police van chasing this car with a speed of `5` m/s fires a bullet at the theif's car with muzzle velocity `72` km/h. Find the speed with which the bullet will hit the car-

A

`10` m/s

B

`20` m/s

C

`15` m/s

D

`25` m/s

Text Solution

Verified by Experts

The correct Answer is:
C

`V_( )=72` km/h = `(72xx5)/(18)=20` m/s = `V_(b)`
`V_( )=25+5=25` m/s ( w.r.t to ground)
and `V_( )=25-10=15` m/s
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