Ask your own question, for FREE!
Mathematics 21 Online
OpenStudy (anonymous):

Calculus question! I have a picture of the problem in my comments

OpenStudy (anonymous):

OpenStudy (anonymous):

Pleaseeee explain how you did it, and don't just give me an answer

OpenStudy (fibonaccichick666):

ok, so the velocity is the ________ of the position function.?

OpenStudy (solomonzelman):

Okay, so about which statements do you know for sure true or false ?

OpenStudy (solomonzelman):

explain why for each , please.

OpenStudy (anonymous):

isnt the velocity the first derivative?

OpenStudy (anonymous):

idk I really have no idea where to even start. Im really confused

OpenStudy (solomonzelman):

Well, do all the statements that you can first... can you do any of them ?

OpenStudy (fibonaccichick666):

it is, so, can you find the velocity function?

OpenStudy (anonymous):

what do you mean do them?

OpenStudy (fibonaccichick666):

basically, what we are going to do is look at the answers, and prove whichever true or false by calculaating the correct answer for each

OpenStudy (fibonaccichick666):

so, if velocity is first derivative of position, can you find the velocity function?

OpenStudy (anonymous):

the velocity is -4t + 5

OpenStudy (fibonaccichick666):

^ i would mark that incorrect because you have to have v(t)=-4t+5 but anywyas so now, is that a constant function?

OpenStudy (anonymous):

I dont know how to figure that out

OpenStudy (fibonaccichick666):

what does it mean for something to be constant?

OpenStudy (anonymous):

not changing

OpenStudy (fibonaccichick666):

so does your velocity change?

OpenStudy (anonymous):

no?

OpenStudy (anonymous):

the derivative is a line right?

OpenStudy (fibonaccichick666):

what is your variable?

OpenStudy (anonymous):

t

OpenStudy (fibonaccichick666):

does it change?

OpenStudy (anonymous):

no

OpenStudy (fibonaccichick666):

what does t represent?

OpenStudy (anonymous):

the x value?

OpenStudy (fibonaccichick666):

no, it represents time

OpenStudy (anonymous):

so time changes

OpenStudy (fibonaccichick666):

yup so is the velocity constant?

OpenStudy (anonymous):

no

OpenStudy (fibonaccichick666):

so is a true?

OpenStudy (anonymous):

no.

OpenStudy (fibonaccichick666):

alright that's one down

OpenStudy (fibonaccichick666):

now let's tackle b

OpenStudy (anonymous):

ok

OpenStudy (fibonaccichick666):

the initial position occurs at t=?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!