A ball of radius r and density p falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n, the value of h is given by. A ball of radius r and density p falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n the value of h is given by. September 16, 2020 Category: Cengage NEET by C.P Singh , Chapter 14 - Fluid Mechanics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related