What are the only two things a driver can control?

• A. Speed and braking
• B. Position and force
• C. Direction and velocity
• D. Acceleration and momentum

Answer: (C)

When you drive, you directly shape how the vehicle moves by choosing where you’re headed and how fast you’re going. Steering changes the direction, while the throttle and brakes set your speed, and together these controls define your velocity (which is speed with a specific direction). Position is simply where you end up on the road over time and is not something you set in a single moment. Momentum depends on velocity, but you don’t directly choose momentum; you influence it by changing velocity. So the two things you can control are the direction of travel and the velocity.