# Rotational Motion (NEET Physics): Questions 1 - 6 of 125

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## Question number: 1

» Rotational Motion » Angular Momentum

MCQ▾

### Question

Calculate the angular momentum of a body whose rotational energy is 10 joule. If the angular momentum vector coincides with the axis of rotation and its moment of inertia about this axis is 8 x 10 -7 kg m 2

### Choices

Choice (4) Response

a.

2 x 10 -3 kg m 2 /s

b.

6 x 10 -3 kg m 2 /s

c.

4 x 10 -3 kg m 2 /s

d.

Question does not provide sufficient data or is vague

## Passage

Consider a cylinder of mass M = 1 kg and radius R = 1 m lying on a rough horizontal plane. It has a plank lying on its top as shown in the figure.

A force F = 35 N is applied on the plank such that the plank moves and causes the cylinder to roll. The plank always remains horizontal. There is no slipping at any point of contact.

## Question number: 2 (1 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

### Question

Find the value of frictional force at B

### Choices

Choice (4) Response

a.

2.5 N

b.

5.0N

c.

4.5 N

d.

All of the above

## Question number: 3 (2 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

### Question

Calculate the acceleration of cylinder.

### Choices

Choice (4) Response

a.

20 m/s 2

b.

10 m/s 2

c.

6.36 m/s 2

d.

Question does not provide sufficient data or is vague

## Question number: 4 (3 of 3 Based on Passage) Show Passage

» Rotational Motion » Angular Momentum

MCQ▾

### Question

Find the value of frictional force at A

### Choices

Choice (4) Response

a.

2.5 N

b.

7.5 N

c.

4.77 N

d.

Question does not provide sufficient data or is vague

## Question number: 5

» Rotational Motion » Angular Momentum

MCQ▾

### Question

A wheel rotates with a constant acceleration of 2.0 radian/sec 2. It the wheel starts from rest, the number of revolutions it makes in the first ten seconds will be approximately

### Choices

Choice (4) Response

a.

16

b.

8

c.

24

d.

32

## Question number: 6

» Rotational Motion » Angular Momentum

MCQ▾

### Question

If the earth is a point mass of 5 × 1024 kg revolving around the sun at a distance of 1.1 × 108 km and in time T = 3.14 × 107 s. Then the angular momentum of the earth around the sun is

### Choices

Choice (4) Response

a.

1.5 x 10 37 kg m 2 /s

b.

1.21 x 10 40 kg m 2 /s

c.

2.7 x 10 40 kg m 2 /s

d.

1.21 x 10 40 kg m 2

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