Question

a ball is thrown vertically upwards. it reaches a height h and comes back to it initial position. calculate distance travelled and displacement of the ball

Answer 1

As we know that the total length of the journey is the distance,Distance = h+h = 2h
also we know that the shortest gap between the initial and final positions the body is coming back to the initial position the net displacement is zero.

Answer 2

the distance travelled is 2h and displacement is 0. If you still gave doubts then message me.
;)