Dec 13, 2020 · So Ekf-Eki+Epf-Epi=0. I understand that the final potential energy is 0 (distance away approaches infinity), but don't get why the final kinetic energy becomes 0. If the final …

May 12, 2013 · This is probably a stupid question because the answer is likely "it just is". I am reading Calculus: The elements by Michael Comenetz, and when talking about mQ, he goes …

Jun 27, 2006 · I have returned to this forum after six months. How is the formula Kinetic Energy=1/2mv^2 derived?

Dec 16, 2004 · After about 3 years of learning physics, I still can't understand how the kinetic energy formula works. If the velocity of an object is doubled, why does...

Jul 23, 2015 · The kinetic energy of the fluid seems to be a result of the work done by pressure forces in accordance with the work energy principle.For eliminating confusion one may also …

Dec 18, 2018 · The energy component of KE is the velocity. Momentum is mass x velocity so, in a collision containing in-elasticity, if KE is lost to heat then that heat energy must have been …

Oct 27, 2007 · Homework Statement Consider a turntable to be a circular disk of moment of inertia I_t rotating at a constant angular velocity w_i around an axis through the center and …

Oct 30, 2007 · Could someone please explain why kinetic energy is proportional to velocity squared and not just velocity. A propulsion system that provides a constant force would …

Aug 4, 2017 · Homework Statement I'm trying to digest the concept of change in potential energy being set equal to a change in kinetic energy. Does this relationship...

Jun 16, 2007 · I have always plugged numbers into the following forumula: KE = 1/2m*v^2 and it works perfectly. :biggrin: I don't understand why. :blushing: Can anybody please tell me why it …