A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 4 years ago
A football is kicked from ground level with an initial vertical velocity of 48 ft/s. How long is the ball in the air?
a.3 s
b.5 s
c.8 s
d.10s
anonymous
 4 years ago
A football is kicked from ground level with an initial vertical velocity of 48 ft/s. How long is the ball in the air? a.3 s b.5 s c.8 s d.10s

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thank you xishem for explaining it,

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.1Oh! Wait. The units don't match up... Let me fix that.

Xishem
 4 years ago
Best ResponseYou've already chosen the best response.1\[y=y_0+v_yt+\frac{1}{2}a_yt^2\]\[0=0+(48\frac{ft}{s})t+\frac{1}{2}(9.81\frac{m}{s^2}t^2)\]\[0=t[48\frac{ft}{s}4.905\frac{m}{s^2}t]\]Set each factor to 0.\[0=t\]\[t=0\]And...\[0=48\frac{ft}{s}4.905\frac{m}{s^2}t\]\[4.905\frac{m}{s^2}t=48\frac{ft}{s}\]\[t=9.7859\frac{ft*s}{m}*(\frac{1m}{3.281ft})=3.0s\]There we go! :P
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.