Question

Two parallel vectors have same magnitudes 2m and 3m . what will be the magnitude of their resultant ​

Answer 1

Answer:

A= 2m

B = 3m

Angle between them = 0° because they are parallel to each other.

Resultant R =

$\sqrt{} a {}^{2} + b {}^{2} + 2ab \: cos \: theta$

$\sqrt{} 2 {}^{2} + 3 {}^{2} + 2 \times 6 \: cos0$

$\sqrt{} 4 + 9 + 12$

$\sqrt{} 25$

R = 5m