Answer to Question #206504 in Physics for Arsene

Question

Maria throws a ball straight up with an initial velocity of 10 m/s. What is its velocity when it returned to the elevation from where it was thrown? Please explain your answer.

Answer 1

$$v_f=-v_i=-10\frac{m}{s}$$

Fom the conservation of energy magnitude of velocity will be the same, but it has oppositie direction.