How can we obtain the first law of motion from the second law of motion ?
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the second law of motion states that acceleration of a particle (
measured from inertial frame ) is given by resultant of all the forces
acting on it divided by its mass
mathematically it is represented as
a=Fr/m note acceleration and force is a vector quantity
here Fr is resultant force
we write above equation as
Fr=ma
first law states that if the body remains accelerated then the sum of all the forces acting on the body is zero
i.e. Fr=0 where acceleration is a=0
thus we can obtain first law by keeping the value of acceleration (a) 0 in second law
hope this helped u :-)
mathematically it is represented as
a=Fr/m note acceleration and force is a vector quantity
here Fr is resultant force
we write above equation as
Fr=ma
first law states that if the body remains accelerated then the sum of all the forces acting on the body is zero
i.e. Fr=0 where acceleration is a=0
thus we can obtain first law by keeping the value of acceleration (a) 0 in second law
hope this helped u :-)
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6
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refer to the above attachment
hope it helps uh
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