A machine gun is mounted on a 2000kg car...

A machine gun is mounted on a 2000kg car on a harizontal frictionless surface. At some instant the gun fires bullets of mass 10gm with a velocity of `500m/sec` with respect to the car. The number of bullets fired per second is ten. The average thrust on the system is

550 N

50 N

250 N

250 dyne

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