00:01
Hello, my name is david.
00:01
In this video, we'll cover work and average power.
00:05
So for this problem, we want to find out how much time you will take a student to go up three flights of stairs that are a height of 50 feet.
00:16
So we want to convert that to meters.
00:21
So we know that in one foot, there's 0 .30, 48 meters.
00:28
And this conversion factors in the back of your text.
00:31
So we know that the height in meters is 15 .24 meters.
00:39
And the average power output by the weight is 500 watts.
00:50
Let's estimate the mass of each student in your physical class.
00:54
So in my physics class, i estimate that the average weight or average mass is 170 pounds...