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![[Post New]](/templates/default/images/icon_minipost_new.gif) 21 May 2007 23:24:16 IST
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a sphere is ROLLING with velocity v and has a radius r. find the RELATIVE acceleration of the topmost and the bottommost point of the sphere.
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IIT- Imposible Is This(atleast fr meeeeeeeee) |
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22 May 2007 05:13:27 IST
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if a1,a2 r the acc then the relative velocity would be
( (a1)^2 + (a2)^2 - 2a1.a2.c0s(theta) )^1/2
here i have assumed that the sphere is moving uniformly.
if otherwise we need to get the value of rate of change in w to gett angular acc which help us in giving tangential accelaration.
a1--resultant of the tanget. acc and radial acc of the top
radial acc==v^2 / r
tangent acc==0.
a2--radial component only acts here=v^2/r
theta=180
sub to get the answer==2v^2/r
if u dont mind plz rate me
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