Question

A ball is thrown vertically upwards . It goes to a height 20 m and then returns to the ground .taking acceleration due to be gravity g to be 10 metre square, find :a)the initial velocity of the ball b)the final velocity of the ball on reaching the ground c) the total time of journey of the ball.

Answer 1

THE QUES IS BASED ON MOTION IN ONE DIMENSION
YOU WILL UNDERSTAND IT
JUST STUDY THE BASICS OF MOTION IN ONE DIMENSION