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http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_12.pdf
Ok so I'm done with every single thing except this question which is literally haunting me :'( plzzz plzzzz plzzzz if some1 knows it answers it pleaseeeeee it's Q:30
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s11_qp_12.pdf
Questions 10 and 15 please
I have an exam tomorrow
thanks in advance
15: for a couple, there has to be two equal forces acting in opposite directions. A is wrong because the forces are acting in the same direction. D is wrong because the forces are not acting in opposite directions. then why is C wrong? right? well C is wrong because two forces are in opposite directions but they are working from the same point. why is this a problem then? torque gives rise to a motion that is circular. so if two equal forces are acting from the same point, the meter rule will not rotate. the meter will stationary. try imagining this picture. it might help. all the best.
I got it. thanks you very much. May God bless you.
I have a problem in Q10 too. if you can, please explain
sorry, i cant help u with this one. i somehow know the ans. but i don't know how i know
No. 10: F is always in the same direction with a because F is the product of a and a scalar m. Note that v is not always in the same direction with F or a.
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