Recent content by whatgravity

What does everyone think of this idea? I'm writing a paper on it, and I need some arguments as to why it wouldn't work or why its a bad idea. Here's a link to an explanation of LSP: http://www.aip.org/tip/INPHFA/vol-8/iss-2/p12.pdf A limitless supply of energy for the world. Why aren't...

Ok, i think i get it now... In order for the person pulling to keep his pulling force at 50 N, he has to keep the rope tension at 50 N.:smile: and the rope tension on the cart from the hanging mass is always less? This makes sense to me intuitively, but I still don't fully understand...

I don't get it. Why is the tension in the rope always less with the hanging mass? If the carts are frictionless, then wouldn't the tension in the rope connected to the hanging mass remain constant. The force from the weight is constant isn't it? [?]

Is this all the info? If so, then assume no friction, and the answer is 1 ounce of fuel.

There would be no difference in acceleration. For there to be a difference, the person would have to change the amount of force he pulled with

yeah, add the x components up = 8.8 m/s East add the y components up = 21.2 m/s South so 8.8 m/s West and 21.2 m/s North will give you the opposite vector, thereby conserving momentum answer = 22.95 m/s @ 22.5 deg West of North