A child saw a skunk in a hole of a tree, standing 2.5m away. The child attempted to throw a pebble into the hole, but missed with a speed of 11m/s. Angle of elevation is 75 degrees, what was the Vfy of the pebble?
Assuming the pebble missed the tree entirely, and fell onto level ground, the final downward speed is the same as the initial upward speed.
11 * sin75