A physics student stands on the edge of a tall building 50.0m high. She throws a ball with a speed of 20.0m/s at an angle of 38.0 degrees above the horizon.
a) when (what t) does the ball reach a vertical height (y) of 23.5m above the ground?
b) what is the velocity (expressed in unit vector form and its speed & direction) of the ball just before hitting the ground?
c) how far from the edge of the building (what x) does the ball hit the ground?
d) what is the position (find x,y) of the ball when it reaches a speed of 25.0m/s? (Hint: speed is the magnitude of the velocity vector, also be mindful of the directions (signs) of vy)
e) how high (what y) from the top of the building does the ball reach?