Jules kicks a soccer ball off the ground and into the air with an initial velocity of 25 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?

0.6 sec

0.8 sec

1.6 secs

2.8 secs

Question

Jules kicks a soccer ball off the ground and into the air with an initial velocity of 25 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?

0.6 sec

0.8 sec

1.6 secs

2.8 secs

anonymous · Answer

who has gamail

anonymous · Answer

if the question means 25 velocity vertically...then you do this...

vf = vi + at
0 = 25 + (-9.8) t
t = 25 / 9.8
t = 2.55
that's the time it takes to reach the maximum height
multiply that by two to get the time it takes to fall back to the ground
so around 5 seconds