Tag Archive for: work-energy theorem

why can we jump

How Can We Jump When the Ground Does No Work?

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Common mistaken argument It is relatively common on Physics Forums to see arguments that are effectively similar to the following: When we jump off the…
energy conservation can we do better

Can We Do Better Than Mechanical Energy Conservation?

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Note: It is assumed that the reader has read part I of the series. Introduction The ambiguity and flaws discussed in part I can be resolved using the…
energy conservation ambiguity

Is Mechanical Energy Conservation Free of Ambiguity?

Introduction "Close to any question that is in the textbook, there is another question that has never been answered that is interesting." [Stephen Wolfram,…
What is potential energy

Potential Energy Explained: Formulas, Units & Derivations

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Potential energy is the negative of the work done by a conservative force on an object, representing mechanical energy stored due to position within a…
vehicle power

Why Power Determines Vehicle Acceleration Limits

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Introduction One interesting problem when dealing with a vehicle of a certain mass is to determine what is required to get the maximum acceleration while…
relativitytherorm

Learn the Relativistic Work-Kinetic Energy Theorem

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I was bothered for a long time by the reasons for the relativistic validity of the work-kinetic energy relation ##\Delta E=Fd##, which holds without any…