A resting on a smooth horizontal plane is attached by

Last updated: 6/10/2023

A resting on a smooth horizontal plane is attached by threads to a point P and by means of a weightless pulley to a weight B possessing the same mass as the bar itself A B Besides the bar is also attached to a point O by means of light non deformed spring of length 50 cm and stiffness x 5 mg 10 where m is the mass of the bar The thread PA having been burned the bar starts moving Find its velocity in m s at the moment when it