An object is seen to either speed up, slow down, or change direction.

Question

What are these behaviors are caused by?

Responses

a balanced set of forces

a balanced set of forces

unbalanced forces

unbalanced forces

stable factors

stable factors

frictional force

Answer 1

The behaviors of an object speeding up, slowing down, or changing direction are caused by:

unbalanced forces

Unbalanced forces occur when the total force acting on an object is not zero, resulting in a change in the object's state of motion (acceleration, deceleration, or a change in direction).