What term describes the forward-pushing force that propels a vehicle?

• A. Drag
• B. Weight
• C. Thrust
• D. Normal force

Answer: (C)

The forward-pushing force that propels a vehicle is thrust. Thrust is the force produced by engines or propellers as they push mass backward, which pushes the vehicle forward in the opposite direction. It acts in the direction of motion and helps overcome resisting forces like air drag. Drag slows the vehicle down by pushing opposite to its movement, weight is the downward pull of gravity, and the normal force is the push they feel perpendicular to the surface in contact. When thrust is greater than drag, the vehicle accelerates forward; when they balance, it moves at constant speed. In a car, the engine’s power ends up as thrust transmitted through the wheels to push against the road.