Need help finding how long it will take the object to reach 7 meters. it should be from -4.9t^2 +29.8t+ 55 but I don't know what to do from there.

Question

asked Aug 11, 2024 14.0k views

1 Answer

Steve Owens · Answer 1 · 2024-08-17T18:56:52+0000

Explanation:

7 m = - 4.9t^2 + 29.8t + 62 <====solve for 't'

0 = - 4.9t^2 + 29.8t + 56 <===== Use Quadrtatic Formula

with a = - 4.9 b = 29.8 c = 55

to find t = 7.57 seconds