A rod of length 
whose lower end is fixed along the horizontal plane starts to topple from the vertical position. The velocity of the upper end of the rod when it hits the ground is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Decrease in gravitational potential energy = Increase in rotational kinetic energy about point
or 
or 
Now, 
(In pure rotation)
v 
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