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![[Post New]](/templates/default/images/icon_minipost_new.gif) 5 Apr 2008 19:57:27 IST
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Two persons each of mass 50kg are standing on a platfrom P of mass 10kg and is placed on a platform Q of mass 20kg...Now A starts moving towards B wrt to P with speed of 5m/s B is at rest...As a result of motion of A Q moves right with vel. of 5m/s....wrt ground....Cal the vel of B wrt ground/..... plz answer to get rated...plz answer fast...Click to enlarge..
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:03:29 IST
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plz reply.....wat none in goiit to help a ques in Momen...?????
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:09:14 IST
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someone plz reply..... ;;;;;;;;;;plz reply..............................................................................................................
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:11:20 IST
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give me rates and i will solve it surely
btw, is platform P on platform Q
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5 Apr 2008 20:11:39 IST
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2.5m/s opp to A . Is it correct?
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5 Apr 2008 20:13:01 IST
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plz tell me whether I am correct or not
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5 Apr 2008 20:13:52 IST
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well i ll surely give u rates...@arpan...plz solve it...
Well @madhavedu....u r answer is wrong....anyways..good try...keep trying...
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:19:05 IST
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plz solve it plz ....i am waotin for response....
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:23:22 IST
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is the ans 23.2
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5 Apr 2008 20:23:30 IST
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check this soln lets conserve momentum rt ground frame consider plank P and B as a single boy as B is at rest wrt P hence velocity of P wrt grnd= vel of B wrt ground so mass of B+P=60 kg 50*5-20*5+60*vel of B+P=0(initial momentum) hence vel of B+P=-30*5/60=2.5 m/s opp to A find error in it
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5 Apr 2008 20:24:30 IST
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sorry dude..u r asnwer is wron...nice try..keep it going....
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The only place where you will find success before hard work is in the dictionary
A winner never quits.....a quitter never wins......
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5 Apr 2008 20:25:40 IST
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@ madhavedu
velocity of B cannot b equal to velocity of P
because it violates momentum conservation....
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5 Apr 2008 20:26:00 IST
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what is the ans
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5 Apr 2008 20:27:03 IST
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tell me the error in soln as far as i understood ur question's meaning it is the correct soln. from which book\material did u select this ques.
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5 Apr 2008 20:28:44 IST
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its a ques from Brilliant Test se |
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