A level Physics Question!?
2016-06-04 7:01 pm
Suppose I have a wire of cross sectional area A, and I'm applying a force of F newtons on EACH end of the wire. What will be the stress? Can anyone please explain?
回答 (2)
2016-06-04 7:08 pm
✔ 最佳答案
The tension in the wire is F (not 2F by the way).Stress = force/cross-sectional area = F/A
If F is in newtons and A is in m², the stress is in N/m² (=Pa).
2016-06-04 7:56 pm
By Newton's 3rd law, there MUST be a 2nd force (in the opposite direction), but the material stress is calculated by F/A, as noted by the other Stephen above.
收錄日期: 2021-04-21 18:56:52
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