The only way an object's speed or direction of motion can be changed is if a(n) _______ force acts on it.
A.
frictional
B.
unbalanced
C.
balanced
D.
electrical

Respuesta :

Answer:

B. Unbalanced

Explanation:

I learned this in 8th grade.

:))) This is the right answer.

Unbalanced force acts on it