Question

state Newton's second law of motion and explain the expression of Newton's second law of motion

Answer 1

Hey!!!

Ur ans is...

Newton's second law of motioncan be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the netforce, and inversely proportional to the mass of the object.

Ex..

F = ma and F = m δv/δt 

where δv/δt is the rate of change of velocity with respect to time... this is actually what Newton's second law is. F = ma is a kind of 'analogy'.

Hope it helps.

Answer 2

Hey mate.... ^_^

Here is ua answer... ⏬⏬

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Newton's second law of motion:
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It states that, "acceleration produced in a body is directly proportional to the force applied to it in the direction of motion and inversely proportional to its mass".


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Expression:
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Let be the initial and final momentum's respectively.

According to newton's second law :- 
pf - pi / t ∝ F 

We know that, 

Momentum ( P) = mv .

Let v be the final and u be the initial velocity.

Now, 

mv - mu / t ∝ F 
F ∝ m ( v-u) /t
F ∝ ma. 
F = kma. 

Here, K is the proportionality constant. It's value is 1 .

Units of Force are given by the units of mass and acceleration. Units of force is Kgm/s² .

In accordance to honour the contributions of Newton, 1 kgm/s² is termed as 1 Newton.


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