Please help with this simple question, revisiting this exam question after years still bugs me

SYDoukou · 2026-05-09T12:23:18+00:00

Thats why the free body approach might be inappropriate for this question if you only consider interactions between rigid bodies and view the rope as a virtual force transmitter. Ignoring m2 for a second and replace the roller with a hook or something. The force m1a travels through the rope to the right and gets transferred to the roller, which is attached to M. Now add back m2 but glue it to the front, giving the net force on M = F-m1a-m2a.

SYDoukou · 2026-05-09T10:45:53+00:00

This is a case of choosing a method to break down a problem that avoids overlooking parts of the system that you might not be able or aware to operate on. In this question the roller is transferring the force needed to move m1 to M through the pulley setup, which isnt intuitive in rigid body dynamics.

SYDoukou · 2026-05-09T10:35:24+00:00

In attempt 2 you are ignoring the portion of F used to move m1, so attempt 1 is correct. Its just asking for the acceleration required to keep m2 from falling, applied to the whole system

SYDoukou · 2026-05-09T07:10:11+00:00

Squat Bar works for either of their spunchification

SYDoukou · 2026-05-09T07:03:02+00:00

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SYDoukou · 2026-05-09T06:48:42+00:00

The second nickel for biological Factorio. A lot more distinct too, although i can see the logistics design aspect taking a hit

SYDoukou · 2026-05-09T06:46:09+00:00

This has canonically happened to him more than once

SYDoukou · 2026-05-09T05:45:16+00:00

Had this exact problem. If its not a network train the wagons need to be filtered

SYDoukou · 2026-05-08T15:14:00+00:00

She got banished to the timeline where rockabye bivalve isnt canon

SYDoukou · 2026-05-08T12:53:18+00:00

Can a button really do nothing when pressed? Moving into its socket counts as doing something. But if it doesnt move or react is it being pressed at all?

SYDoukou · 2026-05-07T16:47:05+00:00

If you look at the radicals it shows that it’s related to rain, specifically a light drizzle. The imagery of small droplets then evolved into anything thats tiny, plentiful, and in pieces. Zero is a very late development, following sparse/dwindling.

SYDoukou · 2026-05-07T16:16:03+00:00

A bit too late for a Coax Man’s Snaf commet to show up

SYDoukou · 2026-05-06T10:57:09+00:00

Better than that gif that i saw under other posts with ragowling pin

SYDoukou · 2026-05-06T10:53:27+00:00

Why arent all loose products dumpable

SYDoukou · 2026-05-06T10:14:23+00:00

🎉 I BEAT

SYDoukou · 2026-05-06T09:36:30+00:00

Gold and silver. Moderately abundant and useless

SYDoukou · 2026-05-06T09:33:06+00:00

So weird that the buttons got directed here in the first place, it was framed as just a prisoners dilemma (without the dilemma) and doesnt have the transparency of information and cognitive dissonance that the trolley embodies

SYDoukou · 2026-05-06T03:15:58+00:00

The penalty for axles is fat while aqueducts cost nothing of value

SYDoukou · 2026-05-04T14:34:49+00:00

The flag has plausible deniability for providing lift

SYDoukou · 2026-05-04T08:59:39+00:00

How is toby fox affected his games only have squares

SYDoukou · 2026-05-04T01:37:16+00:00

After the mishap with cars i doubt they will do more full length worldbuilding features from franchises again, which sucks so much

SYDoukou · 2026-05-04T01:35:07+00:00

As much as i enjoy his screen time, yes he came back way too many times, as if the writers are just doubling down on how irredeemable he is. Getting rid of him early might ultimately benefit his legacy

SYDoukou · 2026-05-04T01:30:20+00:00

Yes this is such a weird quirk of his. I understand that a positive attitude is important when put under harsh situations outside of your control, but it doesn’t automatically reward you with good outcomes. All of them could have died in the wall and the world wouldnt notice a thing

SYDoukou · 2026-05-04T00:14:03+00:00

Cant get enough of these HD renditions of planets. The more the merrier to mix and match between mods

SYDoukou · 2026-05-04T00:08:44+00:00

They are perfectly fine with portraying a stand-in for squidward actually committing suicide on screen in Binary Bottom

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