• A 5 kg box is dropped from a height of 10 m. The instant before the box strikes the ground its speed is 6 m/s.
• a. How much gravitational potential energy does the box have before it is dropped?
• b. How much kinetic energy does the box have just before it hits the ground

• c. How much energy was lost due to the work done by the drag force (air resistance) 
• d. How large is the average drag force? (Use ENERGY)

Answer rating: 100% (QA)

This question involves understanding the principles of energy transfer in particular potential and k... View the full answer