Question

Will Give Medal!

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?

1.3 secs
2.6 secs
16.0 secs
27.6 secs

Answer 1

Is this a physics question???

Answer 2

No its Algebra 1

Answer 3

I would say it is because it's kinematics

Answer 4

at the highest point velocity v=0
g=-32 ft/sec^2
initial velocity u=42 ft/sec
v=u+gt
0=42-32t
32 t=42
\[t=\frac{ 42 }{ 32 }=\frac{ 21 }{ 16 }\]
total time of flight=2t
\[=2 \times \frac{ 21 }{ 16 }=\frac{ 21 }{ 8 } \sec=?\]

Answer 5

U guessed it right...

Answer 6

So it would be b... because 21/8 is 2.625

Answer 7

correct.

Answer 8

Thanks So Much!!! (:

Answer 9

yw