Concept expert (J.P.W)
Concept expert (J.P.W)
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Newton's second laws of motion by Gaurav sir
Newton’s Second Law of Motion
Change in momentum can be calculated as:
Case 1: P = Pf - Pi
= mv - mu
= 2(5) - 2(0)
P = 10 kg m/s
Case 2: P = Pf - Pi
= mv - mu
= 2(10) - 2 (0)
= 20 kg m/s
Hence proved
Force ∝ Change in momentum
More the force more will be change in momentum.
Force ∝ 1/t
Where, t = time at which momentum velocity changes
Comparing both the concepts
Force ∝ p/t
Force ∝ (mv -mu)/t
Force ∝ m(v -u)/t
Force ∝ ma
Force = Kma (k = proportionality constant i.e. value of k in SI unit is 1)
Force = mass x acceleration .
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