which example shows an object acted on by two balanced forces?
a baseball rolling to a stop
a car moving at a constant speed in a constant direction
a snowflake landing on a roof
a skateboard rolling down a hill with increasing speed
Both answer choices B and C show an object acted on by two balanced forces.
Answer choice B: "a car moving at a constant speed in a constant direction" demonstrates balanced forces acting on the car. The force applied by the car's engine is balanced by the force of friction and air resistance acting against the car.
Answer choice C: "a snowflake landing on a roof" exhibits balanced forces. As the snowflake descends, the force of gravity pulling it down is balanced by the upward force exerted by air resistance.