SOLUTION: h(t)=-16t2 +18t+1025 models the height vs time when a ball is thrown. Is the height of the ball in feet or meters? __________ At what velocity if the ball being thrown?________

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: h(t)=-16t2 +18t+1025 models the height vs time when a ball is thrown. Is the height of the ball in feet or meters? __________ At what velocity if the ball being thrown?________      Log On


   

Question 1143291: h(t)=-16t2 +18t+1025 models the height vs time when a ball is thrown.
Is the height of the ball in feet or meters? __________
At what velocity if the ball being thrown?__________
Is the velocity upward or downward? ___________
How tall is the building? ___________
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


The general equation is

h%28t%29+=+%28%28-1%2F2%29%28g%29%29t%5E2+%2B+v%280%29%2At+%2B+h%280%29

The leading coefficient of the given function, -16, means g is 32; that means the measurements are in feet, since the acceleration due to gravity is 32 ft/sec^2.

ANSWERS:
(a) feet
(b,c) v(0 = 18 ft/sec, upwards
(d) h(0) = 1025 feet