Question

A police jeep is chasing velocity of 45 km/h. A thief in another jeep moving with a
velocity of 153 km/police fires a bullet with muzzle velocity of 180 m/s the velocity it will
strike the car of the thief is?

Answer 1

Effective speed of bullet is = Speed of bullet + Speed of police jeep

= 180 m/s + 45 km/hr

= 180 m/s + 45 × $\frac{5}{18}$ m/s

= 192.5 m/s

Speed of theif's jeep = 153 km/hr = 42.5 m/s

Velocity of bullet with respect to theif's jeep = 192.5 − 42.5 m/s

= 150 m/s

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