AIPMT> Find the resultant of two vectors P = 3 i...

Find the resultant of two vectors P = 3 i + 2 j and Q = 2 i + 3 j.

In solution of this question to find resultant they have directly added P and Q and then found magnitude of it. But they have not used the formula for finding resultant that is \/ P^2 + Q^2 + 2PQ cos(angle)

Aabha Misra , 6 Years ago

Grade 12th pass

2 Answers

Deepak Kumar Shringi

Last Activity: 6 Years ago

both are the same thing you can also do it by formula or you can add them and then get the magnitude the 2^ndformula is bascially derived from the 1^stone only

Arun

Last Activity: 6 Years ago

Dear Aabha

if P and Q are same what you have written then directly P+Q should be wrong.

Resultant = sqrt (P^2 + Q^2 + 2PQ cos @)

this should be used

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AIPMT> Find the resultant of two vectors P = 3 i...

Find the resultant of two vectors P = 3 i + 2 j and Q = 2 i + 3 j. In solution of this question to find resultant they have directly added P and Q and then found magnitude of it. But they have not used the formula for finding resultant that is \/ P^2 + Q^2 + 2PQ cos(angle)

Aabha Misra , 6 Years ago

Deepak Kumar Shringi

Arun

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