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anonymous
 4 years ago
s(t) = 16 t^2 + 80 t
The rocket is traveling down at a velocity of 60 fps at what time?
anonymous
 4 years ago
s(t) = 16 t^2 + 80 t The rocket is traveling down at a velocity of 60 fps at what time?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so 60=32t+80 32t=20 t=20/32 s

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0t=20/32 is the answer?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0well 20/32 is the fraction, 0.625 seconds is what I got,

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I didn't have a calculator on hand, sorry if that's also wrong

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i know but I plugged it and it said it was wrong

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0are you sure you posted the question correctly, or is there any other information, or unit conversion to be done?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0if not, i'm sorry I don't think i can help

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0heres everything i know:

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0The height of a rocket launched from the ground is given by the function s(t) = 16 t^2 + 80 t, where s is in feet above ground and t is in seconds. After 3 seconds, the rocket is 96 feet above ground. After 3 seconds, the rocket is traveling at a velocity of 16 feet per second. The rocket is traveling down at a velocity of 60 fps at what time? 0.625 Incorrect: Your answer is incorrect.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ah, okay hold on here

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.060=32t+80 32t=140 t=140/32 t=4.375 seconds

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the time i gave you originally was, the time it took to go from the top of it's flight (0fps) to 60fps in the downward direction, so not enough information was given originally.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0that should be correct now

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah its right thank you very much

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so how did you find it?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so I can understand for another question

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0well you know that v(t) = s'(t) and you know how to do calculus right?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0not quite.. ds/dt=v(t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so the deriv or ds/dt = the velocity of t

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0so the derivative of s with respect to t is the velocity in terms of t ..in words..

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0kinda the same thing i said

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0basically if you have s(t) and you want velocity you will do s'(t) by calculus methods which you should know how to do, if you're taking this class. then the acceleration function is v'(t) or s''(t) if you need to find that

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0in this question since they said the velocity was 60 you can put that in the equation where v(t) is because 60 fps is the v(t) just like the acceleration was 32fps or v'(t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0whats the difference between v prime of (t) and the second deriv of (t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0which is gravity in america.. aha. crazy americans.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you would never say the second derivative of (t) it would be worded as the second derivative of s(t) or s''(t) or s double prime of t, and that is the acceleration function of t so s''(t) = v'(t) = a(t)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0hey I just started this class so we havent gotten that far

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0t is always what the function is with respect to, it is the variable you are measuring, you are not deriving it, you are deriving in terms of it

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0and that's fine! calculus isn't an easy concept to grasp but when you do.. boy i tell ya. good times.. aha.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0no college im attending u of maryland
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