Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A hollow vertical drum of radius r and height H has a small particle in contact with smooth inner surface of the upper rim at point P. The particle is given a horizontal speed u tangential to the rim. It leaves the lower rim at Q vertically below P. Taking n as an integer for number of revolutions, we get
A
n = 
B
C
n = 
D
n = 
Text Solution
Verified by ExpertsThe correct answer is:
D
For vertical motion
H = 
or t = 
For horizontal motion, distance covered is given by,
2 π π n = ut
or 2 π π rn = 
or n = 
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