A spherical ball of radius 1 × 10⁻⁴ m and density 10⁴ kg m⁻³ falls freely under gravity through a distance h before entering water. If its velocity does not change after entering the water, find h in metres. The viscosity of water is 9.8 × 10⁻⁶ N s m⁻².
Physics · Properties of solid and fluid
A spherical ball of radius 1 × 10⁻⁴ m and density 10⁴ kg m⁻³ falls freely under gravity through a distance h before entering water. If its velocity does not change after entering the water, find h in metres. The viscosity of water is 9.8 × 10⁻⁶ N s m⁻².