Kinematics Question 523
Question: A particle is moving along a circular path. The angular velocity, linear velocity, angular acceleration, and centripetal acceleration of the particle at any instant, respectively, are $ \vec{w},\vec{v},\vec{\alpha }and{{\vec{a}} _{c}} $ . Which of the following relations is not correct?
Options:
A) $ \vec{w}\bot \vec{v} $
B) $ \vec{w}\bot \vec{\alpha } $
C) $ \vec{w}\bot {{\vec{\alpha }} _{c}} $
D) $ \vec{v}\bot {{\vec{\alpha }} _{c}} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Angular acceleration and angular velocity are along the axis of circular path. So they can not be perpendicular to each other.
