A garbage truck is parked on a hilly road. If the weight of the truck is 7200 lb and the angle between the road and the horizontal is 21°, what is the force required to keep the truck on its position?

• A. 2580.2 lb
• B. 1997.9 lb
• C. 2463.8 lb
• D. 2512.4 lb

Answer: (A)