50 A small steel ball is dropped from a height of 2 5 m into

Last updated: 6/9/2023

50 A small steel ball is dropped from a height of 2 5 m into a tall glycerin jar It hits the surface of glycerin with certain velocity and sinks to the bottom by losing 20 of its velocity at the surface If the time taken to reach the bottom after it is dropped is 2 s and velocity in glycerin is lost at constant rate then find the average velocity of the ball over the whole journey