A pinada, practically in a shape of a slender thin rod of length mass 4.0 kg is hanging from the tree branch after being hinged at one end. A kid at the party strikes a pinada with a plastic baseball bat and fails to break it. After a hit, the bottom of the pinada has a speed of 5.0 m/s.
Estimate how high the pinada will swing and express your answer in terms of the angle the pinada makes with the vertical.