What's the law of motion ?
On physics, there are 3 laws of motion stated by Issac Newton who was a famous mathematician & physician.
Newton's 1st Law of Motion ⇨ The 1st law states that 'any object will continue in its state of rest or motion until or unless an external unbalanced force acts on it.' It's also known as the Law of Inertia.
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Newton's 2nd Law of Motion ⇨ The 2nd law states that 'the acceleration of an object is directly proportional to the net force and inversely proportional to the mass of the object.' The formula for this law is 'f = ma, where, f = force, m = mass & a = acceleration.'
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Newton's 3rd Law of Motion ⇨ The 2rd law of motion states that 'for every action that takes place, there'll be an equal & opposite reaction'. This is perhaps the most commonly known law & the recoiling of the gun is the best example for this law of motion.