You push a 20 kg box from an elevation of zero up a hill. You exerta force of 200 N for 6 m and the box speeds up steadily from restto 2 m/s. There is a 100 N frictional force that opposes thebox's motion.
Draw energy bar charts to describe this motion. Be sure to describeyour system, and the initial and final states.
At what elevation is the box moving when its speed is 2 m/s?
What angle does the hill make with the horizontal?