A water balloon is tossed into the air with an upward velocity of 25 ft/s. Its height h(t) in ft after t seconds is given by the function h(t) = − 16t2 + 25t + 3. Show your work.

19. After how many seconds will the balloon hit the ground? (hint: Use the quadratic formula)

20. What will the height be at t = 1 second

Question

A water balloon is tossed into the air with an upward velocity of 25 ft/s. Its height h(t) in ft after t seconds is given by the function h(t) = − 16t2 + 25t + 3. Show your work.

  19.  After how many seconds will the balloon hit the ground? 	(hint:  Use the quadratic formula)


	 20.	What will the height be at t = 1 second

aaronq · Answer

It will follow a parabolic trajectory |dw:1460673459393:dw|

For a) Solve the equation $ h(t) = − 16t^2 + 25t + 3$ 

In other words, find t when h(t)=0

 $ 0= − 16t^2 + 25t + 3$ 

For b) plug in t=1,   $ h(t) = − 16(1)^2 + 25(1)  + 3$