When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?

a.
stable factors

b.
frictional force

c.
a balanced set of forces

d.
unbalanced forces

The correct answer is

D. unbalanced forces

In fact, according to Newton's second law, unbalanced forces acting on an object will accelerate the object:

where the term on the left is the resultant of the forces acting on the object, m is the object's mass, and a is its acceleration.

If there are unbalanced forces acting on the object, the acceleration of the object a is different from zero: this means that the object will change its speed or its direction, or it can also stop moving if the direction of the force is opposite to that of the motion.

science is a systematic and logical approach to discovering how things in the universe work. true to this definition, science aims for measurable results through testing and analysis. science is based on fact, not opinion or preferences. the process of science is designed to challenge ideas through research.

explanation:

are there answer choices to this question? this seems like a question where you have options to choose from.