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Systems of Particles and Rotational Motion — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsSystems of Particles and Rotational Motion1 Mark
Question
Read statement below carefully, and state, with reasons, if it is true or false:
The instantaneous speed of the point of contact during rolling is zero.
✓

Answer

True.
Explanation:
Rolling can be considered as the rotation of a body about an axis passing through the point of contact of the body with the ground. Hence, its instantaneous speed is zero.

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