Question

Two forcess of magnitude a and b are acting at right angle to each otherthe magnitude of their result is​

Answer 1

Answer:  

$\sqrt{a^{2}+b^{2} }$

Explanation:

Angle between the forces = 90°

resultant magnitude = $\\\sqrt{a^{2} +b^{2} +2abcos\alpha }$

                                  = $\sqrt{a^{2}+b^{2} }$