# Rotational Motion-Concepts of Rotational Motion (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 1 - 2 of 2

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 268 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

How to register?

## Question number: 1

» Rotational Motion » Concepts of Rotational Motion

Appeared in Year: 2011

MCQ▾

### Question

Figure below shows a small mass connected to a string, which is attached to a vertical post. If the ball is released when the string is horizontal as shown, the magnitude of the total acceleration (including radial and tangential) of the mass as a function of the angle θ is –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 2

» Rotational Motion » Concepts of Rotational Motion

Appeared in Year: 2015

MCQ▾

### Question

A uniform cylinder of mass M and radius R is rotated freely about a stationary horizontal axis O. On cylinder a cord of length l and mass m is wound in a single layer. The wound part of the cord is supposed to have it centre of gravity on the cylinder axis. The angular acceleration of the cylinder as a function of the length x of the hanging part of the cord is –

### Choices

Choice (4) Response

a.

b.

c.

d.