Question

If A vector+ B vector= C vector then find B vector if A vector = 37° from x axis in fourth quadrant and C vector= 53° from x axis in first quadrant. Find magnitude and direction of B vector with ur own method and parallelogram law of vector addition

Answer 1

Answer:

Answer

Correct option is

B

2cm along positive x-axis

From given definition

A

=2cos60

i

^

+2sin60

j

^

B

=2cos(−60)

i

^

+2sin(−60)

j

^

=2cos60

i

^

−2sin60

j

^

A

+

B

=2×2cos60

i

^

+0

j

^

=4.

2

1

i

^

=2

i

^

∣

∣

∣

∣

A

+

B

∣

∣

∣

∣

=2.