Center Of Mass
High-Yield Trend
Questions 7 MCQs
Two bodies of mass kg and kg have position vectors and respectively. The centre of mass of this system has a position vector:
1.
2.
3.
4.
Two particles that are initially at rest, move towards each other under the action of their mutual attraction. If their speeds are and at any instant, then the speed of the centre of mass of the system will be:
1.
2.
3.
4.
A man of kg mass is standing in a gravity-free space at a height of m above the floor. He throws a stone of kg mass downwards with a speed of ms-1. When the stone reaches the floor, the distance of the man above the floor will be:
1. m
2. m
3. m
4. m
Two persons of masses and respectively, are at the opposite ends of a boat. The length of the boat is and weighs The man walks up to the man and sits with him. If the boat is in still water, the centre of mass of the system shifts by:
1.
2.
3. zero
4.
Which of the following statements are correct?
| (a) | centre of mass of a body always coincides with the centre of gravity of the body . |
| (b) | centre of gravity of a body is the point about which the total gravitational torque on the body is zero. |
| (c) | a couple on a body produce both translational and rotation motion in a body. |
| (d) | mechanical advantage greater than one means that small effort can be used to lift a large load. |
| 1. | (a) and (b) | 2. | (b) and (c) |
| 3. | (c) and (d) | 4. | (b) and (d) |
| 1. | 2. | ||
| 3. | 4. | |
| 1. | 2. | ||
| 3. | 4. |
Preparing Center Of Mass for NEET
Center Of Mass is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Center Of Mass. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Center Of Mass a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.