I am trying to understand these and hoping that someone can explain them.
1. How much work does a person do to lift 60000g a distance of 7.8 ft in 10s? How much power? Hp?2. What is the average speed in m/s of an airplane that flies 6000 miles in 10 hrs? 3. What is the speed of a 784N person that expends 2260 J of K.E.?