rotation basics..

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a rod of length l is resting on a horizontal floor.at a certain instant of time,lower end has a velocity of 3m/s
what is the minimum velocity of of the upper end of the rod?

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Aditya Bhutra ·2011-10-04 02:06:07

vel. of lower end along the length of the rod is 3.cos60 . since the rod is rigid, min. vel of upper end will be 1.5 m/s

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Vijay Yevatkar ·2011-10-27 04:14:07

Bhaiya can u xplain it plsssss????

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thakurshubham joshi ·2011-10-27 04:52:26

the velocities at both ends should be same in order to move the rod so the cosine of 3 ie 3cos60 is the velocity at upper portion (min)

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rishabh ·2011-10-27 05:46:22

@vijay,
velocity of all the points of the rod along the length of the rod is same since it is a rigid rod and can neither contract or expand.

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rotation basics..

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