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

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

A

10m/s,up

B

20m/s

C

15m/s

D

25m/s

Text Solution

Verified by Experts

The correct Answer is:
C
Velocity of the thif.s car with respect to ground is
`v_(TG)=10m//s`
Velocity of police van with respect to ground =5m/s `(v_(PG))`
`v_(BP)=20` m/s
Velocit with which bullet will hit the target is
`v_(BT)=v_(BG)+v_(TG)=v_(BT)+v_(PG)+v_(GT)implies20=5-10=15`m/s
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