Consider the following statements and select the correct statement(s). I. Angular frequency is a vector quantity II. Linear velocity is a vector quantity III. About a fixed axis, angular velocity has fixed direction IV. Every point on a rigid rotating body has always different angular velocity

Question

Consider the following statements and select the correct statement(s). I. Angular frequency is a vector quantity II. Linear velocity is a vector quantity III. About a fixed axis, angular velocity has fixed direction IV. Every point on a rigid rotating body has always different angular velocity (A) I only (B) II only (C) II and III (D) III and IV

Tardigrade Admin · Accepted Answer

Torque = Force × perpendicular distance of line of action of force from the axis of rotation (d). Hence for a given applied force, torque or true tendency of rotation will be high for large value of d. If distance d is smaller, then greater force is required to cause the same torque, hence it is harder to open or shut down the door by applying a force near the hinge.

Q. Consider the following statements and select the correct statement(s). I. Angular frequency is a vector quantity II. Linear velocity is a vector quantity III. About a fixed axis, angular velocity has fixed direction IV. Every point on a rigid rotating body has always different angular velocity

I only

II only

II and III

III and IV

Q. Consider the following statements and select the correct statement(s).
I. Angular frequency is a vector quantity
II. Linear velocity is a vector quantity
III. About a fixed axis, angular velocity has fixed direction
IV. Every point on a rigid rotating body has always different angular velocity