A bob hangs from a rigid support by an inextensible string of length ℓ. If it is displaced through a distance ℓ (from the lowest position) keeping the string straight, & then released. The speed of the bob at the lowest position is & then released. The speed of the bob at the lowest position is A bob hangs from a rigid support by an inextensible string of length ℓ. If it is displaced through a distance ℓ (from the lowest position) keeping the string straight November 26, 2020 Category: Arihant Physics by D.C Pandey , Chapter 7 - Circular Motion , Volume 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related