Question

state parralogram law of vector derive an expression for the magnitude and direction of resultant vector



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Answer 1

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Parallelogran law is the law used for the addition of vectors which starts from the Same point or whose tails are connected.

The resultant will be given by diagonal which starts from the starting point of 2 vectors.

Magnitude of a resultant vector

R=

$\sqrt{ {a}^{2} } + \sqrt{ {b}^{2} } + \sqrt{ 2ab \: cos \: theata }$