Since the change in kinetic energy is still zero, this means that the positive change in gravitational potential energy is equal to the negative number of internal energy changes. Assume that your mass is 75 kg (165 lbs). This means moving up by 1 meter will reduce your internal energy by 735 joules. That is exercise.

Climbing stairs and stairs climbers

Now, we can return to the original question: How do you say about the working ability principles of stairs and stair climbers? Well, we've done the physics of stair climbing. If you are on a 1 meter table or climbing 100 stories high, that is the same calculation - it's just a different value for height. But, let's say you stay in the same place while moving under the stairs. If someone is measuring your forward motion, they will say your speed is zero. Your height will not change either, so the working energy equation now looks like this:

This says that the internal energy changes are also zero, which means you won't burn any Calories. I mean, that's wrong... right? So how should we solve it? I'm going to use a good example based on Steve Mold's video. Like this: Imagine the escalator you are moving downward. Likewise, an observer on the ground will make you think of as still. However, we can also measure your speed from the frame of reference of the escalator and you will rise.

Actually, if the escalator has walls and ceilings, you won't be able to say you're in the right place. You don't even know that the stairs are moving. Since the stairs move at a constant velocity (zero acceleration), this will be an inertial reference frame. In physics, any inertial reference frame is as effective as any other reference frame - the fundamental laws of physics remain unchanged. Therefore, from the perspective of escalator frame yes Go to work and do work. Just like you walk on a fixed frame.

But in fact, it is more difficult for stair climbers to get

I say stair climbers are the same as climbing stairs, but that's not the case. In fact, the story of climbing up 100 floors is easier than the equivalent distance for stair climbers. Does this look crazy? This is a little crazy. What makes them unique is because of the field of gravity (g) Never really stable.

Remember, we define gravity energy as u = mxgxy? This is not a mistake, but it is a bit misleading. In fact, the gravity potential energy of the Earthling system will be defined as the following: