Identify the situations that have an unbalanced force. Check all that apply.A baseball speeds up as it falls through the air.A soccer ball is at rest on the ground.An ice skater glides in a straight line at a constant speed.A bumper car hit by another car moves off at an angle.A balloon flies across the room when the air is released.

An unbalanced force changes an object's motion by making it speed up, slow down, or change direction. The baseball speeds up as it falls, the bumper car changes direction after being hit, and the released balloon moves across the room, so each has an unbalanced force. The soccer ball at rest and the skater moving at constant speed have no change in motion, so their forces are balanced.

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