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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: a challenging rotational problem.......(conceptual)
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pramod6990 (945)

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ahhh!!!!! atlast i manage to convince one person..........but varun this is not the only catch.....there's another catch comminup...........lets see whether u can crack........tell me how wud u proceed frm this pt.......Hey, cmon' u can do it.......


"Logic is the systematic way of reaching the wrong conclusion with confidence" lol.....
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varun.tinkle (1084)

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SEE SINCE IT IS IN PURE ROLLING WE CAN FIND THE NEW VELOCITY FROM THAT THE ANGULAR VELOCITY
AND THUS THE HIEGHT

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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pramod6990 (945)

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Tell me how do u plan to find out this new velocity.........thers a nice catch here..........


"Logic is the systematic way of reaching the wrong conclusion with confidence" lol.....
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varun.tinkle (1084)

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I THINK
THAT VCOS@=ORIGNAL VELOCITY

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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varun.tinkle (1084)

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I HV TO WAKE AT 5 TOMM
SO WILL COME LATER
PLS GIVE A TIME
SO WE CAN DISCUSS

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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ashish_banga (937)

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answer is( 3v^2 / 4g ) cosec theta
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pramod6990 (945)

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ther's the second catch............i can tell u that it is not  Vcos$...the  final velocity..........


think over it.....nd lets discuss it tomm.(donno at wat time ill be commin online tomm.)......


"Logic is the systematic way of reaching the wrong conclusion with confidence" lol.....
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ashish_banga (937)

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is my answer right
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pramod6990 (945)

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tell me the method by which u found out the velocity after it climbs up............ill tell u after that........


"Logic is the systematic way of reaching the wrong conclusion with confidence" lol.....
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varun.tinkle (1084)

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SEE THE FALLACY
LIES HERE IT IS NOT COMPLETELY INELASTIC
SINCE IT STILL HAS A COMPONENT OF VELOCITY
VCOS 60

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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varun.tinkle (1084)

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IF IT IS AN ELASTIC COLLISION IT WILL NOT HAVE A HORIZONTAL COMPONENT
COZ EV"COS60=V
BUT HERE E=0

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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varun.tinkle (1084)

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SO WHAT TO DO

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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varun.tinkle (1084)

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I GOT IT
IF THERE WAS NO COLISION THEN THE VERTICAL COMPONENT WOULD BE VSIN @ AND HORIZONTAL WOULD BE VCOS@
THE FORCE IS EXERTED ONLY IN THE HORIZONTAL DIRECTION
SO VCOS@=0 BUT IN THE VERTICAL DIRECTION THE FORCE IS NOT EXERTED SO THAT WOULD BE THE RESULTANT VELCOITY
PLS VERIFY
PRAMOD

From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.

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bladeX (68)

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OOOOK UNDERSTOOD DUDE THEN ......... PUT V AS VCOS@
AND PROCEED

WALK NOT AS IF YOU RULE THE WORLD...
BUT AS IF YOU DON'T CARE WHO RULES IT....

MAN WOULD DO NOTHING IF HE WAITED UNTIL HE COULD DO IT SO WELL THAT NO OTHER BEING CAN FIND FAULT WITH IT..................NEWMAN
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pramod6990 (945)

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