A community for students.
Here's the question you clicked on:
 0 viewing
help_people
 one year ago
A firecracker shoots up from a hill 150 feet high, with an initial speed of 110 feet per second. Using the formula H(t) = −16t2 + vt + s, approximately how long will it take the firecracker to hit the ground?
Eight seconds
Nine seconds
10 seconds
11 seconds
help_people
 one year ago
A firecracker shoots up from a hill 150 feet high, with an initial speed of 110 feet per second. Using the formula H(t) = −16t2 + vt + s, approximately how long will it take the firecracker to hit the ground? Eight seconds Nine seconds 10 seconds 11 seconds

This Question is Closed

help_people
 one year ago
Best ResponseYou've already chosen the best response.0@LiveLaughDie @Nnesha @pooja195

help_people
 one year ago
Best ResponseYou've already chosen the best response.0im not sure @sohailiftikhar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it should be some constant value like 5,3 etc u checked the statement clearly ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0take is 5 ..now out height H=0 to find the time 0=16t^2+vt+5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now 16t^2vt=5 put value of v from given data v=110fet/sec 16t^2110t=5 divide whole equation with 16 to get simplest form

help_people
 one year ago
Best ResponseYou've already chosen the best response.016t^2=5+110 16T^2=115 is tis correct?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no where is the t with 110 ?

help_people
 one year ago
Best ResponseYou've already chosen the best response.0? could you just show me for my understudying @sohailiftikhar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just find the value of t from the equation which i gave you ignor negative value and get +ve value that will be the answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did u do your work correctly ? what two values you have got ? for t

help_people
 one year ago
Best ResponseYou've already chosen the best response.0there ya goooo @sohailiftikhar

help_people
 one year ago
Best ResponseYou've already chosen the best response.0ok I'm still not sue what the answer is :/ @sohailiftikhar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol we are not sure about s which we taken as 5 ..so take it easy it's 2 sec

help_people
 one year ago
Best ResponseYou've already chosen the best response.0that not one of the answers :( @sohailiftikhar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what is answer ?O.o

help_people
 one year ago
Best ResponseYou've already chosen the best response.010? @sohailiftikhar

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lol what ? no it can be possible it only can 2 or near it your answer is correct i'm sure ..from where u get this huh ?

help_people
 one year ago
Best ResponseYou've already chosen the best response.0here are the options: Eight seconds Nine seconds 10 seconds 11 seconds

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0setup the equation when it hits the ground h(t)=0 n v=110 and s=150 now plug in the numbers and solve the qudratic equation

help_people
 one year ago
Best ResponseYou've already chosen the best response.0so im solving for s?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0no solve for t they already gave you v and s value

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0\(\color{blue}{\text{Originally Posted by}}\) @Nnesha setup the equation when it hits the ground h(t)=0 n v=110 and s=150 now plug in the numbers and solve the qudratic equation \(\color{blue}{\text{End of Quote}}\) read this

help_people
 one year ago
Best ResponseYou've already chosen the best response.0ook so what would the formula be to solve for t ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0\[\huge\rm \frac{ b \pm \sqrt{b^24ac} }{ 2a }\] quadratic formula

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0a , b ,c values are \[\huge\rm Ax^2+Bx+C=0\] A= leading coefficient b=middle term c= constant term
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.