Class 11

9. System Of Particle & Rotational Motion question bank (Physics)

Practice 1,397 free Class 11 Physics - 9. System Of Particle & Rotational Motion questions with answers and step-by-step solutions.

Q1.

All particles of a body are situated at a distance \( R \) from the origin. The distance of the centre of mass of the body from the origin is 

(A)
= \( R \)
(B)
\(\leq R\)
(C)
> \( R \)
(D)
\(\geq R\)
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Q2.

Distance of the centre of mass of a solid uniform cone from its vertex is \( z_0 \). If the radius of its base is \( R \) and its height is \( h \), then \( z_0 \) is equal to 

(A)
\(\frac{5h}{8}\)
(B)
\(\frac{3h^2}{8R}\)
(C)
\(\frac{h^2}{4R}\)
(D)
\(\frac{3h}{4}\)
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