Two forces act at a point in the plane. The angle between the two forces is given. Find the magnitude of the resultant
force.
-forces of 40 and 86 newtons, forming an angle of $90 ^ { \circ }$ (round to the nearest newton)
A) 95 newtons
B) 46 newtons
C) 126 newtons
D) 3440 newtons

Question

Quizplus · Accepted Answer

The magnitude of the resultant force when two forces act at a right angle (90 degrees) is found using the Pythagorean theorem: $\sqrt{40^2 + 86^2}$, which approximates to 95 newtons.

Two Forces Act at a Point in the Plane 90∘90 ^ { \circ }90∘

Two Forces Act at a Point in the Plane $90 ^ { \circ }$