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First Law of Motion

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First Law of Motion

“An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.”

Also called the Law of Inertia, an object will stay at rest or in motion indefinitely, unless an external or unbalanced force acts upon this object.
Inertia of an object is dependent upon the mass of an object. Greater the mass of an object greater is the inertia.

Eg: Water in a bottle continues moving forward even though the bottle has come to a halt.

 

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