How would I figure out the answer to question 6?

LAB SPH3U DETERMINING YOUR BODY POWER Introduction: Power is the rate at which we do work or expend energy. A human walking has a power of 260 W, a horse working steadily has a power of about 750 W (about 1 horsepower); and an ocean liner has a power of about 118 MW (118 000 000 W). In this investigation you will be calculating your maximum power as you run (as fast as you can) up a flight of stairs. All measurements, calculations, explanations, and answers are to be written on this page. Purpose: To determine your maximum power as you run up a flight of stairs. Materials: stopwatch, metre stick, scale, a flight of stairs Procedure: 1. Measure and record your mass in kilograms (kg). If you know your weight in pounds, divide by 2.2 to get your mass in kilograms. My mass is 40kg. 2. Determine the height of the flight of stairs. The height of the flight of stairs is 2-74 m. Explain, in detail, how you found this value. The way I found this value is, using a metre shek, I measured the height of my First floor , to The height of my top floor . 2. 74 m 3. Determine the total diagonal distance you travel while running up the flight of stairs. I will travel 7 _ m while running up the flight of stairs. Explain how you found this. The way I round this is. I measured the distance From the bottom stair to the top stair. Stopping where the Floor becomes horizontal . -7 m 4. Time how long it takes you to run up the flight of stairs. Record your time to two decimal places. You may find this easier if you have someone do the timing for you. Record the times below and find the average. (Make sure that you are safeand have cleared the stairs of all obstructions). time 1: 4 576 time 2: 4.95 s average time: 4. 76 s 5. Use the information from steps 1 and 2 to find the change in gravitational potential energy. Show your work below. My change in gravitational potential energy is 1412 . 76 J Eg= mgh Eg: (60) (9.81) (2.74) m = 60 kg 9= 9.81 m /s ] Eg = 1612.76 h= 274m 6. Use the information in steps 1, 3, and 4 to find your average kinetic energy. Show your work below. My kinetic energy is Ex = my 2 2 m = 60 kg 7. Using the information in steps 5 and 6 find your total energy. My total energy is _ J. B. Using the information in steps 4 and 7 find your power. My maximum power as I run up a flight of stairs is _ W. Show your work below. 9. A 200 g bag of potato chips contains 4.8 MJ of energy. How long would it take you working at your maximum power to consume this energy? Give your answer in an appropriate unit and be sure to show your work