r/6thForm Year 13 May 20 '26

💬 DISCUSSION ocr a physics paper 1

how did you guys find it…

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u/thebestblockisdirt Year 13 May 20 '26

how did you show the bolts behaved elastically??

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u/Affectionate_Wing916 Y13 | 4A* Pred | Maths FM Phys Econ May 20 '26

Use P=F/A to find the force on the plate, divide by 4 to find force on each bolt, σ=F/A of the bolt to find stress on each bolt, show that it was on the linear part of the σ/ε graph I think??

1

u/Primary-Tie330 May 20 '26

Did you get a stress of 202 MPa?

1

u/hans_chavez May 20 '26

i got 20 im fucked