Rotational Motion Question 72
Question: When a mass is rotating in a plane about a fixed point, its angular momentum is directed along
[AIPMT (S) 2012]
Options:
A) a line perpendicular to the plane of rotation
B) the line making an angle of $ 45^{o} $ to the plane of rotation
C) the radius
D) the tangent to the orbit
Show Answer
Answer:
Correct Answer: A
Solution:
- We knows $ L=m(r\times v) $ So here, angular momentum is directed along a line perpendicular to the plane of rotation.
