Recent content by rossero-NL

How can it be that the trampoline stops, while the man is still moving down and still has kinetic energy? Because the only thing that can stop the trampoline is when everything is in the turning point. So how can it be? And how can the stilt build up more energy than the trampoline, without...

I think it this way: You all know that two springs act like one, wit this formule: C_Spring1*C_spring2/(C_spring1+C_spring2) According to that, they cannot work against each other. The damping you are talking about is like the suspension of a bike. It has two chambers with air. One...

Nope, because the total_energy-energy_spent=energy_left , and when the man reaches his maximum hight, all the energy left is in hightenergy. So the more energy spent, the less left, the lower he gets. And yes, I agree with the law of conservation and momentum, but that's just the biggest...

You are wrong because the trampoline can have less mass. But: the trampoline has springs, strong enough to push the man up. And if the trampoline pushes the man away instead of the other way, it's very acceptable that the man has less force down than the trampoline up. The springs push the man...

This is above my english:p But I do understand you a bit. The problem is... if the trampoline has a mass, it can't move with infinite speed. So it will be like in the real world. But if it has, it depends on the mass, or the trampoline will push till the end or not. And if not, will it have...

And emptymaximum, you've said that "their energy goes into deforming the trampoline not boosting you up". But the effect of deforming an trampoline ís that he'll push you up. Or am I thinking wrong?

Thats just the question. Does the springs work against the trampoline? I think no, and that's why I think it can be any answere, without b. Nom my explenation. You think the springs will have at some point more potential force downwards than the tramp upwards. If that's true, you say, the...

I saw that the add of an figure didn't work, so I've made a page on my site. the link is: www.rosserobertolli.4t.com/veren.html . Can annyone tell my when my explennation is correct or incorrect? thaks

The situation is idealistic. Otherwise he must have added same more information about the situation (friction and that kind of stuff). Also is said: when does he obvious jump higher. And ovbious is not the couple centimeters he's missing because of the extra friction by the stilts. I've made...

And Tide, back to your answere, it's not correctly, because when he starts his centre of mass is distance "a" higher. But the second he touches the trampoline, his centre is the same distance "a" higher, then when he touches the trampoline without the things. Or is there something i didn't see?

But if you think more, the sto springs (trampoline and stilts) will hold each other in balance. So at the deepest point they both hold 100% potential force. At the top, they will have decompressed equally till 0%. In the fases between, they allways have to keep up with each other, so the stilt...

Yes, that's true But I've thought of that too, and find out that if you don't use the stilts, but only the trampoline, the trampoline does the same thing. All you put in, you get back. But, will the jumpstilts oppose the energy of the trampoline (so without stilts you get higher) Or...

My english is not the best:p But an explication why it will be b. Because that were my first thoughts too, but I can't prove that it's true. And i need somebody who can prove that one of the statements is true.

He won't use them when they're in a backpack, and that's just the question. Will he get higher with, or without the stilts? And emptymaximum, do you have provement that he will get higher with the springs in his bag?

At school, my teacher asked us a question, where he didn't know the answere on too. The other teachters were not agreed to each other about the answere. This is the question: A trampoline jumper jumps with jumpingstilts ( http://www.tanomi.com/shop/images_item/poweriser_01.jpg ) (shoes...