1.

A robber fires 100 bullets of mass 100 gm each from a machine gun, each at a speed of 500 m/s. If the first 40 bullets are fired in 10 s, what is the average force exerted on the machine gun by the robber during this period?

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A robber fires 100 bullets of mass 100 gm each from a machine gun, each at a speed of 500 m/s. If the first 40 bullets are fired in 10 s, what is the average force exerted on the machine gun by the robber during this period?



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