The angular momentum vector for a spinning wheel lies along its axle and is pointed north. To make this vector point east with chagin magnitude it is necessary to exert a force of constant magnitude on the north end of the axle in which direction?

If a has magnitude 5 and points North-East and vector b has magnitude 5 and point North-West, then |a-b| is equal to

If a has magnitude 5 and points North-East and vector b has magnitude 5 and point North-West, then |a-b| is equal to

If a has magnitude 5 and points North-East and vector b has magnitude 5 and point North-West, then |a-b| is equal to

A particle lies in space at point ( 2,3,4) find the magnitude of its position vector.

A particle lies in space at point ( 2,3,4) find the magnitude of its position vector.

A small ball of mass m suspended from the ceiling at a point O by a thread of length l moves along a horizontal circle with a constant angular velocity omega . Relative to which points does the angular momentum M of the ball remain constant? Find the magnitude of the increment of the vector of the ball's angular momentum relative to the point O picked up during half a revolution.

A rod can rotate in a horizontal plane about its one end. A bead which can move along the rod is placed at certain distance from the axis or rotation. The bead does not to friction. The rod has a constant angular acceleration A. the normal reaction on the bead will be constant h magnitude and direction both B. the magnitude of the normal reaction on the bead will be variable C. the magnitude of friction force on the bead will be constant D. the magnitude of friction force on the bead will be variable

If vecA=4hati+3hatj is a vector, find its magnitude and direction . What is the coordinates of the terminal point of the vector ?

A : The moment of force is maximum for a point if force applied on it and its position vector w.r.t. the point of rotation are perpendicular. R : The magnitude of torque is independent of the direction of application of force.