You are standing at the top of a cliff that has a stair step configuration. There is a vertical drop of 7 m at your feet, then a horizontal shelf of 7 m, then another drop of 3 m to the bottom of the canyon, which has a horizontal floor. You kick a 0.57 kg rock, giving it an initial horizontal velocity that barely clears the shelf below.
/tmp/400375-14111415153650594-14116-5088.dvi
What initial horizontal velocity v will be required to barely clear the edge of the shelf below you? The acceleration of gravity is 9.8 m/s2 . Consider air friction to be negligi- ble.
Answer in units of m/s
+33616 Look at the answers given to the question at http://web2.0calc.com/questions/a-ball-is-thrown-horizontally-from-the-top-of-a-building-25-3-m-high-the-ball-strikes-the-ground-at-a-point-32-9-m-from-the-base-of-the-bui and use the same method, but with the distances replaced by your values.
Note: The mass of the rock is not needed.
+33616 Look at the answers given to the question at http://web2.0calc.com/questions/a-ball-is-thrown-horizontally-from-the-top-of-a-building-25-3-m-high-the-ball-strikes-the-ground-at-a-point-32-9-m-from-the-base-of-the-bui and use the same method, but with the distances replaced by your values.
Note: The mass of the rock is not needed.
