Q. In pure rolling motion, the point of contact with the ground has what type of velocity relative to the ground?

शुद्ध रोलिंग गति में, जमीन के संपर्क बिंदु पर जमीन के सापेक्ष किस प्रकार का वेग होता है?

A
Maximum
अधिकतम
B
Zero
शून्य
C
Equal to the center of mass
द्रव्यमान के केंद्र के बराबर
D
Twice the center of mass
द्रव्यमान का केंद्र दो बार

Explanation

In pure rolling, the point of the rolling object in contact with the ground is instantaneously at rest relative to the ground. This is because the translational velocity of the center of mass is exactly canceled by the rotational velocity at the point of contact.

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