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10 Feb 2009 01:18:46 IST

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ifArodABofLENGTH L ISrestingONtheFRICTIONLESsur face.aBALLstrikesATAPERPENDI ..willCOMconser

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ifArodABofLENGTH L ISrestingONtheFRICTIONLESsurface.aBALLstrikesATAPERPENDI..willCOMconser

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Ayush

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Joined: 8 Oct 2008

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10 Feb 2009 01:21:25 IST

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will it momentum get conserve as external force MG is acting on the ball

Ayush

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10 Feb 2009 01:22:34 IST

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THE BALL STRIKES AT THE END A PERPENDICULARLY FIND THE VELOCITY

Administrator'

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10 Feb 2009 02:25:21 IST

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pls put the question clearly for everyone to contribute.

Ayush

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10 Feb 2009 21:33:39 IST

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if a rod AB OF LENGTH L IS RESTING ON A FRICTIONLESS SURFACE AND A BALL STRIKES PERPENDICULARLY AT A WILL MOMENTUM GET CONSERVED AS EXTERNAL FORCE MG IS ACTING ON THE SMALL BALL.AM I RIGHT??????

DAREDEVIL!!

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10 Feb 2009 21:43:13 IST

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???

shraman asa

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10 Feb 2009 21:56:11 IST

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DUDE SINCE ITZ HORIZONTAL THERE IS NO QUESTION OF MG ACTIN!!!!!!!!!!!! AND MOMENTUM IS CONCERVED ONLY WHEN NET EXTERNAL FORCE IS 0............................"""""WILL MOMENTUM GET CONSERVED AS EXTERNAL FORCE MG IS ACTING ON THE SMALL BALL""""" IS A RONG REAZON ......... MOMENTUM IS CONSERVED AS THERE IS NO EXTERNAL FORCE!!!!CHEERS!!!!!!!!!!!!!!!!!!

Ayush

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12 Feb 2009 00:27:08 IST

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ball is striking the rod AND ALSO DUDE WHETHER THE ROD OR THE BALL(STRIKING) MG WILL ACT ON IT!

Ayush

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12 Feb 2009 00:28:07 IST

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OR THE BALL IS HORIZONTAL OR VERTICAL MG WILL ACT ON IT

Rohit Khattar

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12 Feb 2009 01:43:56 IST

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see the law of conservation of momentum is applicable when the other forces such as gravity, normal reaction etc...are negligible compared to the Force of impact acting due to the collision...so in this case if the rod is horizontal and the ball strikes on it vertically then certainly momentum will NOT be conserved as at the time of striking if u draw the FBD u will see that .... Fimp + N = MG which implys tht MG is comparable to impact force...nudge me for any further dbts...n rate if usefull...

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