Question

One force of magnitude 77 acts on an object. Another force of magnitude 68 acts on the object at a right angle, what is the magnitude of the resultant force on the object?

Answer 1

9514 1404 393

Answer:

102.73

Explanation:

When the forces are at right angles, the resultant magnitude will be found as the hypotenuse of a right triangle with legs equal to the given forces. The Pythagorean theorem applies.

f = √(77² +68²) = √10553 ≈ 102.728

The magnitude of the resultant is about 102.73.