Ques.1- A ball is dropped from a bridge 122.5m above a river.After the first ball has been falling for 2s ,a second ball is thrown straight down after it.Both ball hit water at same time.What is the initial velocity of second ball ?
Ques.2- Two stones are projected vertically upward from a 200 m high cliff with velocities 15m/s and 30m/s resp.The first stone reaches the ground after how much time?
Ques.3-From the top of the tower of height 180m,a ball is dropped.Simultaneously another ball is thrown up from the base of the tower with velocity ,u . What is the minimum velocity u such that the balls collides above ground?
Questions.4-A particle starting from rest with uniform acceleration 3 m per second square describes 9 /25th of Total distance in the last second of its motion .The particle is in motion for ,how much time?
Questions.5-A small Steel Ball dropped from a high window covers half of the distance in last second of motion. Ball is in motion for how much time?
