Physics Two Dimensional Motion Question 116
Question: A particle moves in a circular path with decreasing speed. Choose the correct statement.
[IIT JEE 2005]
Options:
A) Angular momentum remains constant B)Acceleration ($ \vec{a} $ ) is towards the center C)Particle moves in a spiral path with decreasing radius D) The direction of angular momentum remains constant
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Answer:
Correct Answer: D
Solution:
Angular momentum is a axial vector. It is directed always in a fixed direction (perpendicular to the plane of rotation either outward or inward), if the sense of rotation remains same.
BETA
