An object is thrown upward with an initial velocity of 32 feet per second. The objects height is modeled by the function h(t) = - 16t^2 + 32t where t is the time of the at height, h(t). What is the maximum height of the object?

32 ft

60 ft

72 ft

104 ft

Question

An object is thrown upward with an initial velocity of 32 feet per second.  The objects height is modeled by the function h(t) = - 16t^2 + 32t where t is the time of the at height, h(t).  What is the maximum height of the object?

		
32 ft

		
60 ft

		
72 ft

		
104 ft

anonymous · Answer

I got C/

rock_mit182 · Answer

how do you find that value ?

anonymous · Answer

Hold on. I might have made a mistake, I'm using an old calc..

anonymous · Answer

idk.. idk!.. I just idk!.....

rock_mit182 · Answer

do you know how to factor this out ?

anonymous · Answer

I always get it wrong when I do....

mathmale · Answer

Please share what you have actually done, even if you think it's wrong.  Need to understand your thought processes.

mathmale · Answer

Describe what happens if you throw a tennis ball straight up.

anonymous · Answer

nvm, i give up bye.

mathmale · Answer

That's your choice, but it makes me very sad for you.  Persistence is the key to understanding this material.

anonymous · Answer

If I don't finish this work I get kicked out of school! then I lose my home.. I've already lost my job!

mathmale · Answer

But surely you don't think that giving up now is going to make things better ... ?

anonymous · Answer

It's too late anyway..

mathmale · Answer

sorry about your situation, but please let's focus on solving this math / phisics problem.
Your allowing yourself to feel so defeatist may be part of the reason for your difficult situation.

mathmale · Answer

Throw a tennis ball straight up.   Describe in words the ball's behavior.