Two force of magnitude 12N and 9N act at right-angle to each other find the resultant ?

To find the resultant of two forces acting at right angles to each other, we can use the Pythagorean theorem.

Let's call the forces F1 and F2, with magnitudes of 12N and 9N respectively.

Using the Pythagorean theorem, the magnitude of the resultant force (R) can be found using the equation:

R^2 = F1^2 + F2^2

R^2 = 12^2 + 9^2
R^2 = 144 + 81
R^2 = 225

Taking the square root of both sides, we find:

R = √225
R = 15

Therefore, the magnitude of the resultant force is 15N.

defenation of force ?