Recent content by fewme

Also, here is another variant I just thought of... Let's move this whole experiment into deep space, and let's build a self-contained rocket-propelled potato, so there is no vehicle involved to absorb momentum. When the rocket is fired, there is conservation of momentum between the potato...

Thanks for the answers so far, and I have a little more clarity now. What I gather is this... The moving vehicle has momentum relative to the stationary observer, along with the potato contained within. When the potato gun is fired from the vehicle, the vehicle absorbs the recoil of the gun...

Homework Statement I'm actually making up my own problem here to try to resolve some confusion I'm running into on understanding kinetic energy and reference frames... Let's launch a potato of mass m (just call it 1) horizontally with a potato gun on a fast vehicle moving 50 m/s, while I'm...