If a ball is thrown upwards with a velocity of 25m/s. What is the maximum height and time taken to reach the maximum height? If a ball is thrown up vertically. It returns 8s later. What is the velocity with which it was thrown? What is the period it takes for a freestyle swimmer to free fall (accelerate) from 20 meters high? What is the time a 20 m platform freestyle swimmer would be in the air if she takes off straight up (perpendicular) with a vertical speed of 4 m/s (and divests the platform of the path)? Please state and show work on how you arrived at your answer, be as detailed as possible A rock is thrown vertically upward with a velocity of from the top of a building and gets to the ground with a velocity of 6u. What would be the height of the building? A stone is thrown vertically upward with a height of 3m with an initial velocity of 50m/s. What is the velocity of the stone when it reaches the ground