A particle is projected vertically upward with velocity u from a point A, when it returns to the poin of projection a. Its average speed is u/2. b. Its average velocity is zero. A particle is projected vertically upward with velocity u from a point A when it returns to the poin of projection a. Its average speed is u/2. b. Its average velocity is zero. September 19, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related