Find all School-related info fast with the new School-Specific MBA Forum

It is currently 22 Aug 2014, 23:33

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

An object thrown directly upward is at a height of h feet

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Senior Manager
Senior Manager
User avatar
Joined: 11 Sep 2005
Posts: 331
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
An object thrown directly upward is at a height of h feet [#permalink] New post 30 Sep 2007, 00:15
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
An object thrown directly upward is at a height of h feet after t seconds, where h = -16 (t - 3)2 + 150. At what height, in feet, is the object 2 seconds after it reaches its maximum height?

A. 6
B. 86
C. 134
D. 150
E. 214

Am i soooooo dumb?????...........i picked C. I think i have forgotten junior high physics! Please help!
VP
VP
User avatar
Joined: 09 Jul 2007
Posts: 1111
Location: London
Followers: 6

Kudos [?]: 63 [0], given: 0

GMAT Tests User
Re: PS - SET 26 Q21 [#permalink] New post 30 Sep 2007, 00:54
singh_amit19 wrote:
An object thrown directly upward is at a height of h feet after t seconds, where h = -16 (t - 3)2 + 150. At what height, in feet, is the object 2 seconds after it reaches its maximum height?

A. 6
B. 86
C. 134
D. 150
E. 214

Am i soooooo dumb?????...........i picked C. I think i have forgotten junior high physics! Please help!


h=-16(t-3)^2+150
the object reaches its maximum height at t=3
then back down. after two seconds i guess it is 134
C
VP
VP
User avatar
Joined: 08 Jun 2005
Posts: 1157
Followers: 6

Kudos [?]: 110 [0], given: 0

GMAT Tests User
 [#permalink] New post 30 Sep 2007, 02:09
h = -16 (t - 3)^2 + 150.

just plug values for t !

t = 1 then h = 86
t = 2 then h = 134
t = 3 then h = 150
t = 4 then h = 134
t = 5 then h = 86

As you can see, the maximum height is h = 150 at t=3 so after two seconds the height will be 86.

No junior high physics is needed.

the answer is (B)

:)
Senior Manager
Senior Manager
User avatar
Joined: 11 Sep 2005
Posts: 331
Followers: 1

Kudos [?]: 7 [0], given: 0

GMAT Tests User
 [#permalink] New post 30 Sep 2007, 04:06
KillerSquirrel wrote:
h = -16 (t - 3)^2 + 150.

just plug values for t !

t = 1 then h = 86
t = 2 then h = 134
t = 3 then h = 150
t = 4 then h = 134
t = 5 then h = 86

As you can see, the maximum height is h = 150 at t=3 so after two seconds the height will be 86.

No junior high physics is needed.

the answer is (B)

:)


BINGO! Now, that's wht i call a real Ivy league stuff............good one KillerSquirrel
VP
VP
User avatar
Joined: 09 Jul 2007
Posts: 1111
Location: London
Followers: 6

Kudos [?]: 63 [0], given: 0

GMAT Tests User
 [#permalink] New post 30 Sep 2007, 12:14
KillerSquirrel wrote:
h = -16 (t - 3)^2 + 150.

just plug values for t !

t = 1 then h = 86
t = 2 then h = 134
t = 3 then h = 150
t = 4 then h = 134
t = 5 then h = 86

As you can see, the maximum height is h = 150 at t=3 so after two seconds the height will be 86.

No junior high physics is needed.

the answer is (B)

:)


lol, i tried to apply newton's gravity findings :)
  [#permalink] 30 Sep 2007, 12:14
    Similar topics Author Replies Last post
Similar
Topics:
12 Experts publish their posts in the topic An object thrown directly upward is at a height of h feet IEsailor 7 18 May 2011, 15:42
6 Experts publish their posts in the topic An object thrown directly upward is at a height of h feet af sagarsabnis 3 05 Jan 2010, 11:30
2 Experts publish their posts in the topic An object thrown directly upward is at a height of h feet TheBigCheese 5 05 Jul 2008, 10:37
An object thrown directly upward is at a height of h feet mymba99 4 28 Apr 2008, 12:27
Height of an object thrown upwards gregspirited 8 26 Nov 2007, 13:44
Display posts from previous: Sort by

An object thrown directly upward is at a height of h feet

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.