Home › Maharashtra HSC Class 12 (Science) › physics › Rotational Dynamics › The direction of angular velocity vector of a ro…
The direction of angular velocity vector of a rotating body is along the
Atangent to the path
Baxis of rotation
Cradius vector
Dcentripetal force
Answer & Solution
Correct answer: B. axis of rotation
1. For a rotating rigid body the angular velocity vector lies along the axis of rotation.
2. Its sense follows the right-hand thumb rule: curl fingers along rotation, thumb gives ω direction.
3. Therefore the direction is the axis of rotation.
_Source: Maharashtra Balbharati Std XII Physics, Ch 1 "Rotational Dynamics" §1.2.1_
Related questions
A solid sphere and a hollow sphere of equal mass and radius roll without slipping with theA wheel of moment of inertia 2 kg·m² is accelerated from rest to 60 rad/s in 10 s. The torMoment of inertia of a thin uniform rod of mass M and length L about an axis through its cThe relation between linear velocity v, angular velocity ω and radius r in circular motionA car of mass 800 kg takes a turn of radius 40 m at 20 m/s on a level road. The minimum coCentrifugal force in a rotating frame is best described as aCentripetal force on a particle of mass m moving with speed v on a circle of radius r isA fan rotating at 90 rpm stops in 21 rotations under constant frictional torque. The time