Astone is thrown straight up from the edge of a roof, 675 feet above the ground, at a speed of 16 feet per second. a. remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 3 seconds later?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point