a body moving linearly with uniform accceleration covers distance p,q,r,s after suceessive intervals of time t sec. find the ratio of (s-p)/(r-q)

 

 

 

another quest. a small steel ball is dropped from a height of 2.5m into glycerin jar. it hits the surface of glycerin with certain velocity and sinks into the bottom by losing its 20% of its velocity at the surface. if the time taken to reach the bottom after it si dropped is 2 sec. and velocity in glycerin is lost at constant rate, then fiind the average velocity of the ball of whole journey