On a downgrade, your vehicle is working _____ gravity, resulting in a(n) _____ in speed.

On a downgrade, your vehicle is working _____ gravity, resulting in a(n) _____ in speed.

• A. Against gravity, decrease
• B. Against gravity, increase
• C. With gravity, decrease
• D. With gravity, increase

Answer: (B)

On a downgrade, gravity pulls the vehicle downhill and adds energy to its motion, so speed tends to climb unless you actively brake or slow the vehicle. If you’re fighting that pull with braking or engine braking, you’re working against gravity and would slow down. The best fit is that you’re working with gravity, which leads to an increase in speed.

On a downgrade, gravity pulls the vehicle downhill and adds energy to its motion, so speed tends to climb unless you actively brake or slow the vehicle. If you’re fighting that pull with braking or engine braking, you’re working against gravity and would slow down. The best fit is that you’re working with gravity, which leads to an increase in speed.