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Physics · LAWS OF MOTION
हिन्दीA machine gun fires bullets of mass \( 40\text{ g} \) each with a muzzle speed of \( 1200\text{ m/s} \). If the gunman can exert a maximum holding force of \( 144\text{ N} \) on the gun to prevent it from moving backward, the maximum rate at which bullets can be fired per second is:
Correct answer · Option 2
3 bullets per second
Explanation
Force \( F = n \cdot m \cdot v \), where \( n \) is bullets per second. \( 144 = n \times 0.04 \times 1200 = 48 n \implies n = 3\text{ bullets/s} \).
