Rotational Motion (AIIMS Physics): Questions 5 - 8 of 16

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Question number: 5

» Rotational Motion » Angular Momentum

Appeared in Year: 2004

MCQ▾

Question

In an orbital motion, the angular momentum vector is – [AIIMS]

Choices

Choice (4) Response
a.

Parallel to the linear momentum

b.

Along the radius vector

c.

In the orbital plane

d.

Perpendicular to the orbital plane

Question number: 6

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

If the equation for the displacement of a particle moving on a circular path is given by θ=3t3+2 , where θ is in radians and t in seconds, then the angular velocity of the particle after 3 s from its start is –

Choices

Choice (4) Response
a.

81rads

b.

27rads

c.

36rads

d.

9rads

Question number: 7

» Rotational Motion » Moment of Inertia

MCQ▾

Question

Two rings of the same mass of 5 kg and radius 2 m are placed such that their centers are at a common point and their planes are perpendicular to each other. The moment of inertia of the system about an axis passing through the centre and perpendicular to the plane of one of the rings is –

Choices

Choice (4) Response
a.

30kgm2

b.

120kgm2

c.

20kgm2

d.

60kgm2

Question number: 8

» Rotational Motion » Concepts of Rotational Motion

MCQ▾

Question

A particle moves on a circle of radius 5m such that the distance covered on the circle varies with time according to the law, s=3t2+5 . What is the total acceleration of the particle at t=2sec .

Choices

Choice (4) Response
a.

18ms2

b.

38ms2

c.

29.4ms2

d.

34.8ms2

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