Please answer all the problems (1 to 4). Please provide a complete solution in each problem using the format (Given, Required, Equation, Formula, Solution, Answer). Thank you so muchhh!

1. The first question the hermit is struggling with is when he drops a 0.3 kg ball from the top of his hut which is 4.3 m. He wants to know howr fast the ball is going as it strikes the ground. Can help him? 2. He also notices that a similar 0.3 kg ball bounces back up to a height of 0.4 m after it strikes the groundZHow much energy does it lose in the collision with the ground? 3. The hermit also notices that when he throws a 0.5 kg hall upward with an initial velocity of s m_ls it reaches the same height as when he throws a 0.2 kg ball with the same initial velocity. Calculate the height that both balls reach. a. A weightlifter raises a barbell of mass 100 kg from the floor to over his head (2.5 meters) in 2 seconds. What is his average power input?|