Question

An object is moving at a constant speed. If a balanced force is applied in the opposite direction the object is moving, what will most likely happen?

a
The object will change direction.
b
The object will slow down and eventually stop moving.
c
The object will speed up.
d
The object will continue moving at a constant speed.

Answer 1

d

If the forces are balanced the net force is zero, so there is no acceleration (Newton's first law). The object will continue moving at the same speed.