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Incorrect Physics in Call of Cthulhu!
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<blockquote data-quote="Castellan" data-source="post: 154049" data-attributes="member: 639"><p>Nope.</p><p></p><p>Try another example. Let's say two cars heading in opposite directions strike the same building, clearly an immovable object. For each of them, the building absorbs the energy of the collision and imparts no net force on the cars whatsoever. We can't deny that.</p><p></p><p>Now, let's make the building skinnier and try again. Same result.</p><p></p><p>Make it skinnier still. Keep making the building skinnier until it's only an inch-thick wall. Both cars are still running into the wall (which, for our purposes here, we'll consider to have a tremendous mass -- perhaps it's made out of Plutonium or some such heavy element) and experiencing a collision with a solid object.</p><p></p><p>If we continue making the wall smaller and smaller until it's essentially non-existant, we have the cars running into each other. Each car acts as a "wall" for the other car, absorbing the other car's energy and imparting its own energy to the impactor. The <strong>net</strong> result is each car receives <strong>only</strong> the energy from the <strong>other</strong> car, not from itself as well. As was stated earlier, if both cars experienced <strong>all</strong> of the energy, you'd get twice as much energy out of the system as you put in. Clearly, you can't create energy (it's a fundamental law) so it must be conserved.</p><p></p><p>Presuming you <strong>could</strong> add the speeds together, and impart full damage to each vehicle, we wouldn't bother with inefficient fuel sources like coal, water, or nuclear. We'd figure out a way to harness the energy of crashing cars. Because, in the long run, we'd make more money that way! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="Castellan, post: 154049, member: 639"] Nope. Try another example. Let's say two cars heading in opposite directions strike the same building, clearly an immovable object. For each of them, the building absorbs the energy of the collision and imparts no net force on the cars whatsoever. We can't deny that. Now, let's make the building skinnier and try again. Same result. Make it skinnier still. Keep making the building skinnier until it's only an inch-thick wall. Both cars are still running into the wall (which, for our purposes here, we'll consider to have a tremendous mass -- perhaps it's made out of Plutonium or some such heavy element) and experiencing a collision with a solid object. If we continue making the wall smaller and smaller until it's essentially non-existant, we have the cars running into each other. Each car acts as a "wall" for the other car, absorbing the other car's energy and imparting its own energy to the impactor. The [B]net[/B] result is each car receives [B]only[/B] the energy from the [B]other[/B] car, not from itself as well. As was stated earlier, if both cars experienced [B]all[/B] of the energy, you'd get twice as much energy out of the system as you put in. Clearly, you can't create energy (it's a fundamental law) so it must be conserved. Presuming you [B]could[/B] add the speeds together, and impart full damage to each vehicle, we wouldn't bother with inefficient fuel sources like coal, water, or nuclear. We'd figure out a way to harness the energy of crashing cars. Because, in the long run, we'd make more money that way! ;) [/QUOTE]
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