How is newton's first law is a special case of newton's second law?
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(1) according to Newton's second law of motion rate of change of momentum is directly proportional to the applied force
(2)from the it follows that if the applied force is zero there is no change in momentum of the body
(3)now Momentum is equal to mass into velocity as the mass of a body is a constant quantity if there is no change in momentum of the body the velocity of the body must be constant which may be zero or non zero
(4) thus in the options of an applied for a body at rest will remain at rest and a body in uniform motion in a straight line will continue to do so also on application of a force there will be change in the state of rest or the of uniform motion of a body in a straight line these are the contents of Newton's first law of motion
thus Newton's first law of motion can be obtained from Newton's second law of motion
hope it helps you
(2)from the it follows that if the applied force is zero there is no change in momentum of the body
(3)now Momentum is equal to mass into velocity as the mass of a body is a constant quantity if there is no change in momentum of the body the velocity of the body must be constant which may be zero or non zero
(4) thus in the options of an applied for a body at rest will remain at rest and a body in uniform motion in a straight line will continue to do so also on application of a force there will be change in the state of rest or the of uniform motion of a body in a straight line these are the contents of Newton's first law of motion
thus Newton's first law of motion can be obtained from Newton's second law of motion
hope it helps you
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Answer:Newton second law states that the rate of change of momentum is directly proportional to netforce acting on a body.
so, Fnet=m(v-u)/t
F=ma
by this we can say the body is same state until external force acts on it so body is in state until net force (Fnet) act on it
Explanation:
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