Q1. A golf ball with an initial angle of 50° lands exactly 229 m down the range on a level course.
A) Neglecting air friction, what initial speed would achieve this result?
B) Using the speed determined in item (a), find out the maximum height reached by the ball.
Q2. An unstretched spring with spring constant 21 N/cm is suspended from the ceiling. A 3.3 kg mass is attached to the spring and let fall. To the nearest tenth of the centimeter, how far does it stretch the spring?