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)

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Deepak Kumar Shringi · Answer

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

Arun · Answer

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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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)

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)

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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)

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)

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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)