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# Maths A-Level Mechanics, thrust or tension?!! watch

1. Can some explain to me how to know whether to use thrust or tension in a question.
Is thrust only in things such as an inextensible rod and tension can be in anything?
Also if a car is towing a caravan downhill? Does that mean there is thrust or is it only if it is braking?!
2. (Original post by Chenice)
Can some explain to me how to know whether to use thrust or tension in a question.
Is thrust only in things such as an inextensible rod and tension can be in anything?
Also if a car is towing a caravan downhill? Does that mean there is thrust or is it only if it is braking?!
http://www.thestudentroom.co.uk/show....php?t=2232134

I think this thread should help, good luck with mechanics
3. (Original post by supreme overlord)
http://www.thestudentroom.co.uk/show....php?t=2232134

I think this thread should help, good luck with mechanics
Thanks!

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