### Laws of Motion

goals
A uniform meter scale of mass is suspended by two vertical strings attached to its two ends. a body of mass 2m is placed on 75 cm mark. the tension in the two strings are in the ratio
A machine gun of mass $10\ kg$ fires $30\ g$ bullets at the rate of $6$ bullet/s with a speed of $400\ m/s$. The force required to keep the gun in position will be