Question

Arianna kicks a soccer ball off the ground and into the air with an initial velocity of 42 feet per second. Assume the starting height of the ball is 0 feet. Approximately, how long does it take until the soccer ball hits the ground again?

Answer 1

1.3 secs
2.6 secs
16.0 secs
27.6 secs

Answer 2

What is the angle?

Answer 3

its math or physics

Answer 4

physics

Answer 5

@allie_bear22 what is the angle???

Answer 6

im not sure

Answer 7

and its math

Answer 8

@lordcyborg

Answer 9

ya wait i'm trying to figure out the angle

Answer 10

i think that the angle is vertical

Answer 11

if u take it to be vertical throw then answer comes out to be 8.4 sec

Answer 12

@allie_bear2 This question is from which topic???

Answer 13

but thats not an option so maybe its a diffrent angle

Answer 14

ya wt is the related topic???

Answer 15

math

Answer 16

i think you must use this formula
h = -16t^2 + Vot + s

Answer 17

so

initial velocity of 42 feet per second = Vo=42
Assume the starting height of the ball is 0 feet = s=0

Answer 18

@allie_bear22

Answer 19

so its 26?

Answer 20

h = -16t^2 + 42t
the soccer ball hits the ground again => h=0
so now put zero for h
0=-16t^2+42t

Answer 21

so next step
-16t^2 + 42t = 0
t(-16t+42) = 0
t = 42/16 = 2.625 sec

Answer 22

so the answer is 2.6

Answer 23

thnk yu

Answer 24

YW!