SOLUTION: : If an object is projected upward with an initial velocity of 123 ft per sec, its height h after t seconds is h=-16^2+123t. Find the height of the object after 5 seconds.

Question 1117160: : If an object is projected upward with an initial velocity of 123 ft per sec, its height h after t seconds is h=-16^2+123t. Find the height of the object after 5 seconds.
Found 2 solutions by KMST, Alan3354:
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Your formula for height has a typo.
The height (in feet) after seconds can be calculated as
.
We can find the height after seconds,
by just plugging in for in the correct formula:
.
Five seconds after the object is launched upwards,
its height is .
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
: If an object is projected upward with an initial velocity of 123 ft per sec, its height h after t seconds is h=-16^2+123t. Find the height of the object after 5 seconds.
-------------
Sub 5 for t.
RELATED QUESTIONS
If an object is projected upward with an initial velocity of 126 ft per sec, its height h (answered by stanbon)
If an object is projected upward with an initial velocity of 128ft per sec, its height h... (answered by Alan3354)
if an object is projected upward with an initial velocity off 64 ft per sec from a height (answered by jorel1380,lwsshak3)
If an object is thrown upward with an initial velocity of 80 ft/sec, its height after t... (answered by HyperBrain)
If an object is thrown upward from the ground with an initial velocity of 128 ft/sec, its (answered by Alan3354)
If an object is thrown upward with an initial velocity of 48 ft/secs its height after t... (answered by robertb)
If an object is projected upward with an initial velocity of 48 ft pe second from a... (answered by ankor@dixie-net.com,Earlsdon)
Please help me solve this problem: If an object is projected upward with an initial... (answered by richwmiller)
Please help me solve this word problem. If an object is projected from a height of 48 ft (answered by Boreal)