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Mechanics

Blazing goIITian

Joined:	12 Jun 2007
Post:	1078

30 Dec 2007 19:15:49 IST

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448

coefficent of restitution-please help

None

solve

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Blazing goIITian

Joined: 14 Jan 2007

Posts: 602

30 Dec 2007 19:38:06 IST

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Hey,

soory i am unable to open

Decoder

Blazing goIITian

Joined: 1 Apr 2007

Posts: 1084

30 Dec 2007 20:46:13 IST

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frnd i m not solving...but giving the algorthim..
1.cut the sphere into hemispheres(equal)..and i hope u noe why...now ques. is a hemispherical body with speed v collides wid an equilateral triangle... now apply v(sep) / v(app) = e...n before tht... take angles into account..please don apply mom. conservation..

GAURAV SHARMA

Hot goIITian

Joined: 7 Aug 2007

Posts: 184

1 Jan 2008 12:29:28 IST

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hey i am assuming that the mass of the sphere is 'm' n that of wedge is 'M' because the image isnt clear.

now the situation b4 the collision is in fig. 1

after collision is in fig. 2

now writing the equations...

(V2/2 + V1

3/2) / Vo/2 = e

and the second eqn is the impulse eqn...

-mVo/2 +

F dt = mV2/2
and

Fdt cos 30 = MV1

F dt = 2MV1

please solve the two eqns and reply if the answer u get is correct....

GAURAV SHARMA

Hot goIITian

Joined: 7 Aug 2007

Posts: 184

1 Jan 2008 12:32:29 IST

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hey sorry the figures are placed in the wrong order.

the one that is below is the 1st fig. n the one above is the 2nd fig.

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