Question

3/10
what do the arrows on free body diagrams represent?
magnitude and direction
speed and velocity
acceleration and momentum
power and displacement

Explanation:

In physics, free - body diagrams use arrows to represent forces. Forces are vector quantities, which means they have both magnitude (size) and direction. The length of the arrow can be proportional to the magnitude of the force, and the direction of the arrow shows the direction in which the force acts. Options like "speed and velocity" (speed is scalar, velocity is vector but not the main quantity in free - body diagrams for forces), "acceleration and momentum" (not directly represented by arrows in the basic sense of free - body diagrams for forces), and "power and displacement" (power is not a vector quantity represented by an arrow in this context, displacement is a different vector not typically the focus of free - body force diagrams) are incorrect.

Answer:

magnitude and direction