You throw a ball vertically upward from the roof of a tall building. The ball leaves your hand at a point even with the roof railing with an upward speed of 15 m/s; the ball is then in free fall. on its way back down, it is just misses the railing. At the location of the building, (g=9.8m/s2). Find a) the position and velocity of the ball 1.00 s and 4.00 s after leaving your hand? b) the velocity when the ball is 5.00 m above the railing; c) the maximum height reached and the time at which it is reached; and d) the acceleration of the ball when it is at its maximum height
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Physics, 21.06.2019 19:30
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