Question

can anyone please explain me about triangle law of vector?? ​

Answer 1

✍ Triangle Law of vectors:-

✪LAW:-

》If 2 vectors are acting at the same time on a body , they are represented both in magnitude and direction by 2 sides of a triangle taken in an order and the resultantof these vectors is given by 3rd side of that triangle taken in opposite order.

✪Magnitude of resultant:

$\boxed{r = \sqrt{p {}^{2} + 2pq \cos( \alpha ) + q {}^{2} } }$

where R = magnitude.

✪Direction of resultant: 

Let ø be the angle made by resultant R with P. Then,

》 Direction of resultant ,

$\boxed{ø = \tan {}^{ - 1} (qsin \alpha \div p + qcos \alpha ) }$

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HOPE IT HELPS :)

Answer 2

Answer:

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Triangle law of vector addition states that when two vectors are represented as two sides of the triangle with the order of magnitude and direction, then the third side of the triangle represents the magnitude and direction of the resultant vector.