Rotational Motion Question 44
Question: A wheel of bicycle is rolling without slipping on a level road. The velocity of the centre of mass is then true statement is:
[AIPMT 2001]
Options:
A) the velocity of point A is
B) the velocity of point A is zero and velocity of points is
C) the velocity of point A is
D) the velocities of both A and B w are
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Answer:
Correct Answer: A
Solution:
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Key Idea: For a body rolling without slipping, the velocity of any point P on the body is
where
in direction perpendicular to line joining centre and point P.Velocity of point A is,
Velocity of point B is,
Thus, the velocity of point A is
and velocity of point B is zero.