30000th poster gets a cookie (cookie thread (Part 7)) (Part 10)

just do the math :relieved:

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But a treadmill doesn’t apply a fixed force. In fact assume the treadmill applies no meaningful forces (IE the wheels are perfect)

buddy, ap physics didn’t tell me shit about treadmills

or planes
or tying people to tracks that have cannons inside of them

You just do it for the love of the game. An amateur in the truest sense :heart_eyes_cat:

Mildly dumb question: isn’t the whole point of wheels on cars and planes that they’re not perfect and thus can grip the ground and push the thing forward?

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no the point of wheels is that they spin
a perfect steering wheel would still function

you’re talking about tires

and shotgun barrels

Like, I’m specifically thinking about the one time my mom attempted to drive on an icy road, and we nearly skidded and crashed because the tires had zero grip.

and other such potential weapons

Perfect wheel implies no rolling resistance, (IE the bearings holding the wheel are perfect and so the wheel can spin freely if it wants to) the engine on the car can still put down a force, it just feels no sliding basically

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what

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I am admittedly having a very hard time picturing this.

If you just left the car on the treadmill and like… didn’t touch the accelerator. The car would stay in place. But it’s able to accelerate if it wants to. The question is does it have an easier or harder time accelerating than it usually would

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bring up certain subjects and the median person will be wrong about them

never ask the median person whether 0.9999… = 1

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She’s skipping Flight Mechanics to do this btw

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Would it not have a harder time because it still has to spin the wheels forward when the wheels would rather spin backwards with the treadmill?
I’m not actually certain how the car moves at all in this situation.

I’m SLEEPY

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Hi SLEEPY, I’m Ash.

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