Physics Question 6

A little ball hanged by a string is made to oscillate. After that, when it passes the the lowest point it can pass in its motion the string is cut. If the ball moved in a height of 5m from the ground in a velocity of 0.8ms-1 at this moment,

1. What is the time that takes for the ball to fall on the ground?
2. What is the horizontal range passed by the ball?