Question

If three forces 3 N, 5 N and 6 N acting simultaneously
on a body can be represented in magnitude and
direction by the sides of a triangle taken in the same
order, what will be the resultant force on the body?​

Answer 1

Answer:

Explanation:

Force is a vector therefore forces add like vectors do. If 3 vectors form a triangle then their sum is zero (the null vector). If the vectors represent forces then the net force is zero and the affected body is in equilibrium.

In an inertial reference frame a zero net force implies the body has Uniform Linear Motion, meaning it is moving at constant velocity (velocity = speed and direction, it is also a vector). Special case of Uniform Linear Motion: the body is at rest.

If the body is at rest then it is in static equilibrium. If the body is moving at constant velocity then it is in dynamic equilibrium.

You did not specify if the body is stationary or in motion.