Question
Question: A sphere of radius 'R' is rolling over a horizontal surface. All measurement are made with respect t...
A sphere of radius 'R' is rolling over a horizontal surface. All measurement are made with respect to surface over which sphere is rolling. Which of the following strictly confirms pure rolling motion of sphere over horizontal surface ?
A
xcm = Rq : xcm& R in meter & 'q' is in radian
B
vcm = Rw : R in meter, vcm in m/s, 'w' in rad/sec
C
acm = Ra : acm in cm/s2, R in cm, a in rad/s2
D
All of the above
Answer
All of the above
Explanation
Solution
Consider situation shown in figure
