With what angular velocity should a 20 m long cord be rotated such that tension in it, while reaching the highest point, is zero

What is the velocity of the projectile highest point ?

What is the velocity of a projectile at the highest point?

What is the direction of angular velocity of a rotating body ?

What is the angular velocity of a particle lying on the axis of rotation ?

What is the angular velocity of a particle lying on the axis of rotation ?

What is the angular velocity of a particle lying on the axis of rotation ?

A hoop of radius r mass m rotating with an angular velocity omega_(0) is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it cases to slip ?

A hoop of radius r mass m rotating with an angular velocity omega_(0) is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it cases to slip ?