Question

The direction of angular velocity is

a. along the tangent drawn on a point
b. along the radius towards the centre
c. along the radius away from the centre
d. along the axis of rotation

Answer 1

ing about a fixed axis passing through its center of gravity C perpendicular to the ... angle of rotation by drawing radial lines from C to ... which the disk has rotated; every point in. Fig.

Answer 2

hey mate, here's your anwer....

Angular velocity is nothing but the rate of change of angle of a point w.r.t some origin. It is usually defined as the cross product between radius and tangential velocity. Now the direction is perpendicular to both these vectors. Think of it like this, the more farther you are from the origin the more angle you twist. Also the faster you go the more angle you twist. Combined into a product you get angular velocity. Really that's all there is to it. Since you can't have a fixed vectorial direction for angles it has been defined as a cross product of these two vectors. The direction of angular velocity forms an axis about which the particle exhibiting circular motion goes.

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