Describe Newton's first law of motion in detail, giving examples.
Answers
according to Newton's first law of motion :-
any object in the universe can be in its state of rest or uniform motion unless an other unbalanced external force ats on it and changes it state of motion. Newton's 1st law of motion is known as Galileo law of inertia.
example
removing of dust from a carpet by beating
falling of tree by shaking it vigourously
NEWTON'S FIRST LAW OF MOTION
An Introduction:
Newton's First law of motion proposed by Sir Isaac Newton along with two other laws in his book Principia Mathematica Philosophiae Naturalis in the year 1686.
The Law:
Newton's first law of motion states that an object continues to be in the state of rest or in the state of uniform motion until or unless an external, unbalanced force acts upon it.
Explanation and Overview:
Through this law, we can understand that without an unbalanced force acting upon an object, it will have 0 velocity [rest] or constant velocity [uniform motion]. A change in velocity will only occur when a push or a pull, that is, an external force is applied on the object. This will result in accelerated velocity or even change in direction. It is also called the law of inertia as it proposes the meaning of the same.
Examples:
→ A football on the ground stays in rest until or unless a player kicks it.
→ If an astronaut kicks a ball in space, the ball will keep on moving at a constant speed in a certain direction as no force acts upon it to change its course.
→ When we suddenly stop a car moving at high speed, we tend to fall forward.
The Other Laws:
→ The Second law of motion:
The rate of change of momentum of an object is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object.
Formula: F = ma
→ The Third law of motion:
For every action, there is an equal and opposite reaction.