plz help me.it is numerical of physics.u know.read detail of it.?

Question

vector a has magnitude of 5.2 unitsand its directed east.vector b has a magnitude of 4.3 units and is directed 35 degree west of north.By constructing vector diagrams,find the magnitude and directions of (a)a+b ,(b)a-b

ans me clearly

Answer 1

First construct the vector a on the x-axis pointing to the right (east). Then place the base of vector b at the tip of vector a, pointing 35º west of north, which is the same as 125º from the x-axis. Make the length of each vector proportional to its magnitude.

For part a), the base of vector b is placed on the tip of vector a; for part b), vector b is rotated 180º from its position in part a). The result in each case is the vector from the origin to the tip of vector b.