Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

A batter hits a baseball upward with an initial speed of 96 feet per second. After how many seconds does the ball hit the ground? Use the formula h = rt − 16t2 where h represents height in feet and r represents the initial speed.

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

\[h(t)=96t-16t^2\]

OpenStudy (anonymous):

when it hits the ground the height is 0 so set \[0=96t-16t^2\] and solve for t

OpenStudy (anonymous):

\[0=6t-t^2\] \[0=t(t-6)\] \[t=6\]

OpenStudy (amistre64):

to get a more exact answer, wed have to know the height of the ball when it was hit; a golfer on the other hand wed assume a height of 0

OpenStudy (anonymous):

apparently t = 0 too, which means that the baseball player is very very short

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (amistre64):

da plane... da plane

OpenStudy (anonymous):

OpenStudy (anonymous):

How did you get 0=6t-t^2?

OpenStudy (anonymous):

i have the same question

OpenStudy (amistre64):

that depends on if you are using derivatives to calculate this, or just using properties of a parabola.

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

terrance121705:
Which molecule contains the fewest number of atoms? (2 points) a SmCl3 b RbNO3 c

20 minutes ago
2 Replies
0 Medals

terrance121705:
A hot metal bowl is placed on a wooden table. Over time, the wood becomes warm. Which of these statements best describes why the table becomes warm? (2 poin

33 minutes ago
6 Replies
1 Medal

TurtlePrincess:
Explain some of the beneficial results of well-written sentences.

36 minutes ago
0 Replies
0 Medals

kekeman:
A writer presents the following claim and counterclaim: Claim: The school cafeteria should start a composting program Counterclaim: Composting is too messy

2 minutes ago
8 Replies
1 Medal