Question: A particle of mass m is attached to one end of a ...

Prompt

Question: A particle of mass m is attached to one end of a light inextensible string of length l, the other end being fixed at a point O. The particle is projected horizontally from the lowest point with an initial speed v₀. During its motion, the string becomes slack at some point, and thereafter the particle moves as a projectile. If the particle passes through the point of suspension O, find the value of the initial speed v₀.