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As physics p1 MCQS YEARLY ONLY.

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man dats a hell lot of problem..!! okay here it goes for 2012: M/J'12 : Q.4,17,18,20,24,26,29,30,35,37,38
O/N'12 :Q.8,12,13,14,16,17,18,19,22,26,30,31
 
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i was just solving june 2005. honestly u rock! your explanations are so easy and fun! thank you! u just made my day :)
 
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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.
 
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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
 
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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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