A police jeep is chasing with, velocity of $45\, km/h$ a thief in another jeep moving with velocity $153\, km/h$. Police fires a bullet with muzzle velocity of $180 \,m/s$. The velocity it will strike the car of the thief is........$m/s$
$150 $
$27$
$450$
$250 $
A police jeep is chasing with, velocity of $45\, km/h$ a thief in another jeep moving with velocity $153\, km/h$. Police fires a bullet with muzzle velocity of $180 \,m/s$. The velocity it will strike the car of the thief is........$m/s$
Effective speed of the bullet = speed of bullet + speed of police jeep
$ = 180\;m/s + 45\;km/h = (180 + 12.5)\;m/s = 192.5\;m/s$
Speed of thief ’s jeep $ = 153\,km/h = 42.5m/s$
Velocity of bullet w.r.t thief ’s car $ = 192.5 - 42.5$
$=150\,m/s$
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