Work and Energy
The concept of work in physics can be counterintuitive, especially when observing weightlifters who appear to be straining yet are not doing work on the weights they lift. Instead, they are exerting energy within their own bodies, specifically through muscle contractions that require energy expenditure. This internal work alters their energy levels, leading to fatigue and hunger, illustrating the distinction between external and internal work.In this clip
From this podcast
The Science of Everything Podcast
Episode 17: Energy, Work and Momentum
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