Question

Find out the resultant of the two vectors one of magnitude 3 directed towards the east and another one of magnitude 4 directed towards the north .

• A. 5 northeast.
• B. 7 northeast.
• C. 2 southwest.
• D. 1 northeast.
• E. 12 northeast.

Answer 1

Answer: (A)

5 northeast.

Given : $A=3m$ $B=4m$

Resultant vector, $R=\sqrt{A^2+B^2}=\sqrt{3^2+4^2}=5m$ (northeast)