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Mechanics

New kid on the Block

 Joined: 25 Dec 2010 Post: 1
14 Oct 2011 13:16:46 IST
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4
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question on collision of rolling(without slipping)bodies
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how to proceed if we have a question on collision of rolling bodies with stationary objects such as the wall, the staircase etc..????

Cool goIITian

Joined: 7 Sep 2011
Posts: 51
14 Oct 2011 13:29:56 IST
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if collision is elastic K.E of rolling body will not change..
and K.E of a rolling body is equal to the
Sum of Translation K.E and Rotaional K.E ...
if collision is not perfect then coefficent of restitution will be given..
If possible post some questions ...

New kid on the Block

Joined: 14 Oct 2011
Posts: 5
14 Oct 2011 14:40:09 IST
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firtly see that if collision is elasatic,inelastic or perfectly inelastic. then if inelastic,given 'e' coeficient of resitution.then for velocity apply formula given in HCV.i.e.v=(m1+m2)eu1/m1+m2

Cool goIITian

Joined: 6 Oct 2011
Posts: 55
15 Oct 2011 08:53:47 IST
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apply conservation of linear momemtum if the collision is elastic

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Joined: 1 Jun 2009
Posts: 1330
3 Feb 2012 00:35:55 IST
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It is same as the linear collision just the K.E. involved is a little more (due to rotation 1/2  I w2) rest is same..

and rest all eq.s are same!!

for solutions of particular problems, just post them!!

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