A soccer ball is kicked into the air from the ground. If the ball reaches a maximum height of 25 ft and spends a total of 2.5 s

Question

3 years ago

10

A soccer ball is kicked into the air from the ground. If the ball reaches a maximum height of 25 ft and spends a total of 2.5 s

in the air, which equation models the height of the ball correctly? Assume that acceleration due to gravity is –16 ft/s2.

Mathematics

2 answers:

Aleonysh [2.5K] · Answer 1 · 2022-06-02T05:34:57+03:00

Aleonysh [2.5K]3 years ago

6 0

Answer: the answer is A

Step-by-step explanation:

OLga [1] · Answer 2 · 2022-06-02T04:19:27+03:00

OLga [1]3 years ago

4 0

Hello,

g=9.81m/s²= 9.81/0.3048 =32.18.. ft/s² rounded to 32

h=-g/2*t²+vt+h0
if t=0,h=0 ==>h0=0

==>h=-16*t²+vt
50 ft in 2.5s ==> 25 ft in 1.25s

25=-16*1.25²+v*1.25
==>v=50/1.25=40

Equation h=-16t²+40*t