Projectile Motion: Solving another problem

The video tutorial explains how to determine the velocity needed for a second ball thrown at a 30-degree angle to reach the same height as a first ball thrown vertically. It involves analyzing the motion of the first ball, using motion equations, and calculating the necessary velocity for the second ball by ensuring the Y component of its velocity matches that of the first ball.

What is the velocity of the first ball when it reaches the hand after being thrown up?

What must be the Y component of the velocity of the second ball to reach the same height as the first ball?

Calculate the velocity at which the second ball must be thrown at an angle of 30 degrees to reach the same height as the first ball.