state three laws of motion.define impulse and state its si unit
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Newton's First Law of Motion (Law of Inertia ) :
Every object continues in a state of rest of uniform speed in a straight line unless acted on by a nonzero force.
Newton's Second Law of Motion :
The relationship between an object's mass m, its acceleration a, and the applied force F is,F=ma.
Newton's Third Law of Motion :
For every action there is an equal and opposite reaction.
Impulse :
Impulse is the product of a net external force and time.
(Units are N s or Kgm/s).
SI unit of impulse :N.s =(kg:m/s^2).s=kg.m/s.
Every object continues in a state of rest of uniform speed in a straight line unless acted on by a nonzero force.
Newton's Second Law of Motion :
The relationship between an object's mass m, its acceleration a, and the applied force F is,F=ma.
Newton's Third Law of Motion :
For every action there is an equal and opposite reaction.
Impulse :
Impulse is the product of a net external force and time.
(Units are N s or Kgm/s).
SI unit of impulse :N.s =(kg:m/s^2).s=kg.m/s.
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