A machine gun fires a bullet of mass 40g with a velocity of 1200m/s =. The man holding it can exert a maximum force of 144N on the gun. How many bullets can he fire per second at the most?

Here are some laws of physics: Law of universal gravitation: Describes the gravitational force between two objects with masses, m1 and m2. Newton's laws of motion: The first law states that an object will not change its motion unless a force acts on it. The second law states that the force on an object is equal to its mass times its acceleration. The third law states that when two objects interact, they apply forces to each other of equal magnitude and opposite direction. Archimedes principle: States that the buoyant force equals the weight of the fluid displaced by a submerged... Show more

Here are some laws of physics:
Law of universal gravitation: Describes the gravitational force between two objects with masses, m1 and m2.
Newton's laws of motion: The first law states that an object will not change its motion unless a force acts on it. The second law states that the force on an object is equal to its mass times its acceleration. The third law states that when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Archimedes principle: States that the buoyant force equals the weight of the fluid displaced by a submerged object.
Conservation of charge: States that charges (in the form of electrons) are neither created nor destroyed but rather transferred from one body to another. 
 

Other laws of physics include:
Conservation laws
Laws of classical mechanics
Laws of gravitation and relativity
Thermodynamics
Electromagnetism
Photonics
Laws of quantum mechanics
Radiation laws

Related: Engineering Physics Practice Test: Laws of Motion

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