Q 21 A wet open umbrella is held upright and is rotated

Last updated: 6/12/2023

Q 21 A wet open umbrella is held upright and is rotated about the handle at a uniform rate of 21 revolutions in 44 s If the rim of the umbrella is circle of 1 metre in diameter and the height of the rim above the floor is 1 5 m the drops of water spun off the rim and hit the floor at a horizontal m from umbrella Josido gril