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

Algebra
Tutor: None Selected Time limit: 1 Day

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.  Approximatly how long does it take until the soccer ball hits the ground again?

Jun 1st, 2015

This question is still in progress and shall complete in 1 day, then check

Jun 1st, 2015

The equation is h(t) = at^2 + vt + d

where a = acceleration of gravity = - 32.174 ft/sec^2

v = 25 feet/sec

d = starting height = 0

and h(t) = 0 when the ball hits the ground.

So, 0 = - 32.174t^2 + 25t + 0

You can use the quadratic formula on that if you want, or you can solve like this:

0 = - 32.174t^2 + 25t

0 = - 32.174t^2 + 25t

So, one solution of that is t = 0, corresponding to the initial time when the ball is kicked.

The other time is: 25 = 32.174t

t = 25/32.174 = 0.777 seconds

or approximately 0.8 seconds.

Jun 1st, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Jun 1st, 2015
...
Jun 1st, 2015
Feb 24th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer