A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 15.8 m/s. The cliff is 29.4 meter above a flat, horizontal beach. The acceleration of gravity is 9.8 m/s^2.
a. Find how long after being released does the stone strike the beach below the cliff?
2. Find at impact, what is its speed? m/s
3. Find at what angle below the horizontal does it land?