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  1. Why is kinetic energy 1/2 mv^2? - Physics Forums

    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 on to say "there …

  2. Escape Velocity Question: Why is the final kinetic energy = 0?

    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 kinetic energy …

  3. How is the formula Kinetic Energy=1/2mv^2 derived?

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

  4. Why Does Doubling Velocity Increase Kinetic Energy by Four Times?

    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...

  5. How is momentum conserved if you lose kinetic energy?

    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 supplied …

  6. Why kinetic energy is proportional to velocity squared

    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 typically use energy at a …

  7. Change in Potential energy equals change in Kinetic energy?

    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...

  8. Can anybody explain the formula for Kinetic Energy?

    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 is one half …

  9. Solved NAME Kinetic VS Potential Energy Practice Part 1 ... - Chegg

    NAME Kinetic VS Potential Energy Practice Part 1: This graph shows a ball rolling from A to G. 20 Start Sdence Finish og 1. Which letter shows the ball when it has the maximum kinetic energy?

  10. Flow work and kinetic energy in fluid flow - Physics Forums

    Jul 23, 2015 · Considering horizontal flow in a pipe (under the action of pressure forces only) if we focus on a fluid element we have a pressure gradient across the same i.e, a net pressure force will always …