Find the height from which you would have to drop a ball so that it would have a speed of 7.6 m/s just before it hits the ground.
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Find the height from which you would have to drop a ball so that it would have a speed of 7.6 m/s just before it hits the ground.
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- A ball is kicked at ground level with an initial velocity of 19 m/s in the horizontal direction and 12 m/s in the vertical direction. The ball hits the ground at a speed of 22.47 m/s and remains in the air for 2.4 seconds. What maximum height is attained by the ball in meters?A ball is dropped (from rest) from a window and hits the ground with a speed of 7.0m/s. If the ball were dropped from double the height, what would be its speed (in m/s) when it hits the ground? Your Answer:A 5-kg block slides off the horizontal surface of a table with initial speed 1.45 m/s and hits the ground a horizontal distance 0.754 m from the table. How high is the table?
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- While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off of the shelf that is 2.53 meters high. Neglecting air resistance and assuming the book has an initial velocity of 0 m/s, what speed will the book have right before it hits the ground?Problem 6: Raindrops fall vertically downward at a speed of 4.57 m/s. A car drives forward at a speed of 20.4 m/s.An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 8.30 m/s from a height of 1.60 m above the ground. (a) Will the rock reach the top of the wall? Yes O No (b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top? m/s (c) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 8.30 m/s and moving between the same two points. m/s (d) Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? O Yes No (e) Explain physically why it does or does not agree.