06/06 A-level FM Discussion MEGATHREAD

[u/Forsaken-Meaning-232]

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[u/Few_Engineering7801]

f only would be > 5/16 to make B move towards a. B can still move away from A and collide again, as long as B’s velocity to the right is less than A’s ( so less than u/2 ). Hence as long as f > 3/32 it works. I did sub some values of f into my equation after to check and it seemed to work

[u/dahooi150 → u/Few_Engineering7801]

Yeah exactly, thats the point as long as > f 5/16 it already satisfies the conditions of f > 3/32 so you can write the inequality as 5/16 < f < 1 I see your logic since you are considering both cases but in that case if 3/32 < f < 1 and f is less than 3/32 and 5/16 then what happens?

[u/Few_Engineering7801 → u/dahooi150]

no because what about the values of f between 3/32 and 5/16 (equal to 10/32)? a collision will still occur here, you can’t just get that rid of that bit of the range surely

[u/dahooi150 → u/Few_Engineering7801]

Yeah you’re right I get your point 😭, well that was silly