Question

resultant of two vectors makes 30 degree with one vector and 45 degree with the other find the two vectors is resultant has the magnitude 15​

Answer 1

Let two vectors are denoted as

Let the resultant of these two vectors is denoted as  .

The angle made by the resultant with A is 30 degree and with B is 45 degree.

We are asked to determine these two vectors.

The angle made by  with  is 30 degree.

The component of   along the direction of  is calculated as -

Hence, the magnitude of  =