Question

Which equation would best help solve the following problem:



DeSean throws a ball up with an initial vertical velocity of 30 feet per second from a platform that is at ground level. How long will the ball be in the air?




A.


16t^2 + 30t = 0


B.


–16t^2+ 30t = 0


C.


–16t^2 – 30t = 0


D.


–4.9t^2 – 30t = 0

Answer 1

@dakotacheyennecollins

Answer 2

This is really hard im not doing this so if i answered i would probably get it wrong i thought you would have the same kind of work as me

Answer 3

sorry

Answer 4

-16^2+30t=0

Answer 5

its okay and thank you both

Answer 6

how did you get your answer

Answer 7

@Onlymaths

Answer 8

30*t is speed*time(distance).
here time is t and speed or initial velocity is 30 feet/second.
So,as the rigth side is 0 it means the net distance is 0.

Answer 9

thank you