Question

Going up to the observatory on Mt. Jelm we spot a truck that got stuck in a snow drift. To get them unstuck, our 4000 kg snowcat had to tow their 2500 kg truck up a 40 defray hill at constant velocity. How much force does the snowcat's engine have to exert in order to tow the truck up the hill at a constant velocity if the snow exerts a drag force of 3750 N?

Answer 1

also note that drag force acts against the motion.