Question

pls solve this from vectors pls ​

Answer 1

Answer:

At theta = 0°

Explanation:

Vectors are added using 'Vector Law of Additional'. We represent the vectors with rays, length of the ray(line) is the magnitude of the vector. Two vectors are joined head-to-tail and the resultant is given by the displacement of the vectors. Using Pythagoras theorem, we say,

R = √A² + B² + 2ABcos∅

Since, R depends of cos∅, it will be maximum when cos∅ is maximum.

cos∅ is maximum at 0°.

cos0° = 1

So, when the angle between both the vectors is 0°, resultant is maximum.

R = √A² + B² + 2ABcos0°

R = √A² + B² + 2AB

R = √(A + B)²

R = A + B

Max. value of resultant is A + B.