A disc of radius R rotates from rest about a vertical axis with a constant angular acceleration such that a coin placed at the periphery of the disc moves with a tangential acceleration a A disc of radius R rotates from rest about a vertical axis with a constant angular acceleration such that a coin placed at the periphery of the disc moves with a tangential acceleration a September 30, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related