Question

Two forces f1 and f2 are such that their vector sum and difference are at right angle

Answer 1

$\rule{200}{2}$

$\huge\boxed{\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{W}\blue{E}\pink{R:-}}}}}$

Resultant = √A^2 + B^2

When the angle between two forces is 90° then resultant is the sum of the squares of both the forces and under root of it.

$\rule{200}{2}$