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tim_mannire
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Homework Statement
A gun that is fired "recoils". Explain using one of Newton's laws.
Homework Equations
??
The Attempt at a Solution
Newton's second law?? F=M/A
Nope, not the second law. Think about what happens, why does the gun recoil?tim_mannire said:Homework Statement
A gun that is fired "recoils". Explain using one of Newton's laws.
Homework Equations
??
The Attempt at a Solution
Newton's second law?? F=M/A
Hootenanny said:Nope, not the second law. Think about what happens, why does the gun recoil?
Correct.tim_mannire said:every action has an equal and opposite reaction. there for, it is related to Newton's third law.
What happens when you pull the trigger?tim_mannire said:I'm not sure how to explain this scenario using Newton's third law.
Hootenanny said:Correct.
What happens when you pull the trigger?
Nope sounds good to me. However, I would suggest that "in a very short period of time" would be better than "instantly". I would also mention that this change in momentum requires a force, the reaction of which is the recoil of the gun.tim_mannire said:The gun has an equal and opposite reaction, when the bullet is fired it gains speed and momentum instantly, causing the gun to lunge backwards towards the shooter.
are there any more contributing factors?
Hootenanny said:Nope sounds good to me. However, I would suggest that "in a very short period of time" would be better than "instantly". I would also mention that this change in momentum requires a force, the reaction of which is the recoil of the gun.
A pleasuretim_mannire said:Ok, thanks very much for your help.
tim_mannire said:The gun has an equal and opposite reaction, when the bullet is fired it gains speed and momentum instantly, causing the gun to lunge backwards towards the shooter.
are there any more contributing factors?
Newton's First Law, also known as the Law of Inertia, states that an object at rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force.
Newton's Second Law states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. This can be expressed as the famous equation F=ma, where F is force, m is mass, and a is acceleration.
Newton's Third Law states that for every action, there is an equal and opposite reaction. This means that when a force is applied to an object, the object will push back with an equal force in the opposite direction.
When a gun is fired, the gunpowder inside the bullet explodes, creating a high-pressure gas that pushes the bullet out of the barrel. According to Newton's Third Law, the force of the gas pushing the bullet forward is met with an equal and opposite force pushing the gun backwards, resulting in the recoil.
Yes, all of Newton's Laws can be applied to gun recoils. The recoil of a gun can be explained by the application of Newton's Third Law, while the force and acceleration of the bullet can be calculated using Newton's Second Law. Additionally, the Law of Inertia can help explain why a gun will not fire if it is not held firmly in place.