The resultant of a 40-N force at right angles to a 30-N force is
A)30 N.
B)40 N.
C)50 N.
D)greater than 50 N.

Question

Quizplus · Accepted Answer

Since the two forces are perpendicular to each other, we can use the Pythagorean theorem to find the resultant force:

Resultant force = square root of [(40 N)^2 + (30 N)^2]

Resultant force = square root of [1600 N^2 + 900 N^2]

Resultant force = square root of 2500 N^2

Resultant force = 50 N

Therefore, the resultant force is 50 N, which is the closest to choice C).

The Resultant of a 40-N Force at Right Angles to a 30-N