AIIMS 2018 Physics Center of Mass MCQ Question
Assertion: When you lean behind over the hindlegs of the chair, the chair falls back after a certain angle.
Reason:center of mass lying outside the system makes the system unstable.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
The assertion is false because leaning back over the hindlegs of a chair does not inherently cause the chair to fall; rather, it depends on the center of mass and the stability of the chair. If the center of mass shifts beyond the base of support, the chair may tip over, but this is not a universal outcome at a specific angle. The reason is also false, as it does not provide a valid explanation for the assertion. Other options are incorrect because they assume the assertion is true or that the reason correctly explains the assertion, which is not the case. Understanding the concepts of center of mass and stability is crucial in analyzing such scenarios in physics.
Found an issue with this question?
Related Questions
More from Mechanics
A football player is moving southward and suddenly turns eastward with the same speed to avoid an opponent. The force that acts on the player while tu...
A bullet from a gun is fired on a rectangular wooden block with velocity u. When bullet travels 24 cm through the block along its length horizontally,...
The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm, potential energy stored in it will be: