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?

9514 1404 393

  102.73

Step-by-step 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.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680