SOLUTION: Suppose if you kicked a ball with a speed of 20m/s, then what height does the ball raise vertically

Algebra ->  Expressions-with-variables -> SOLUTION: Suppose if you kicked a ball with a speed of 20m/s, then what height does the ball raise vertically      Log On


   



Question 1024684: Suppose if you kicked a ball with a speed of 20m/s, then what height does the ball raise vertically
Answer by ikleyn(52905) About Me  (Show Source):
You can put this solution on YOUR website!
.
Suppose if you kicked a ball with a speed of 20m/s, then what height does the ball raise vertically
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

%28mv%5E2%29%2F2 = mgH       (conservation energy law: m is mass, v is an initial speed, H is height, g is the gravity acceleration, ~ 10 m%2Fs%5E2).

---> H = v%5E2%2F%282g%29 = %2820%5E2%29%2F%282%2A10%29 = 20 m.