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When a body rolls, on a stationary groun...

When a body rolls, on a stationary ground, the acceleration of the point of contact is always zero. Is this statement true or false?

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`a=Ralpha`
`So, net acceleration is `Romega^(2)` towards centre
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DC PANDEY-ROTATIONAL MECHANICS-Level 1 Subjective
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  2. Linear mss density (mass/length) of a rod depends on the distanec from...

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  3. When a body rolls, on a stationary ground, the acceleration of the poi...

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  4. A solid sphere of mass m rolls down an inclined plane a height h. Find...

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  7. A solid body starts rotating about a stationary axis with an angular a...

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  8. A ring of radius R rolls on a horizontal ground with linear speed v an...

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  11. A cube is resting on an inclinded plane. If the angle of inclination i...

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  14. A solid body rotates about a stationary axis so that the rotation angl...

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  15. A rod of mass m and length 2 R is fixed along te diameter of a ring of...

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  16. The figure shows a thin ring of mass M=1kg and radius R=0.4m spinning ...

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  17. A horizontal disc rotating freely about a vertical axis makes 100 rpm....

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  18. A man stands at the centre of a circular platform holding his arms ext...

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  19. A horizontally oriented uniform disc of mass M and radius R rotates fr...

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  20. Consider a cylinder of mass M and radius R lying on a rough horizontal...

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