a student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 20m/s the stone travels 100 m horizntally and hits the beach.
A- how long after being released does the stone strike the beach below the cliff?
B- what is the height of the cliff?
C- what is the speed of impact when the stone lands?
D- What is the angel of the impact velocity below the horizontal?