11. A person steps off the end of a 3.00 m diving board and drops to the water below. How long does it take for the pers

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11 A Person Steps Off The End Of A 3 00 M Diving Board And Drops To The Water Below How Long Does It Take For The Pers 1 (49.47 KiB) Viewed 41 times

11. A person steps off the end of a 3.00 m diving board and drops to the water below. How long does it take for the person to reach the water? a) Write out the known quantities. "steps oft" => V0 As always we set the initial position to be zero at t=0, ergo (therefore), at the top of the diving board, yo = _ *3.00 m diving board" => Final position=.. m b) What is the unknown quantity? c) Which one of the four equations would you use from Question (9) that involves the knows and the unknown? d) Solve the equation for the unknown quantity tdown e) Plug in the values from (a) to find the time. f) Use the answer to (e) and the up/down symmetry of the problem to determine the "hang time" for a ball thrown 3 m into the air, tupkdown = 12. The world's highest fountain of water in Arizona rises to a height of 170 m. What is the initial speed of the water? (p. 51) a) Sketch the path of a small ball of water as we did in Problem (10) indicating the velocity vector at each point. I b) Consider the apex of the flight of the ball of water and write out the known quantities at that height at apexy point velocity at apex , m c) What is the unknown quantity? d) Which equation from Problem (9) should you use? e) Solve the equation for the unknown Plug in the numbers to solve the problem, vo- m/s