Question

A body thrown vertically upward rises up to a height h, and comes back to the initial position. Calculate (a) the total distance travelled by the body, (b) the displacement of the body.

Answer 1

The body thrown vertically up rises up to a height h, and then returns to its initial position. So, from the figure given. (a) The total distance

travelled =h+h 

= 2 lt

(b) The body returns to its initial state. So, the initial and final positions coincide with each other.

Therefore, Displacement of the body = 0 (zero)