Okay, your diagram somewhat clears the water for me. So the displacement is 7 because your initial location was 0 and your final location was 7...which would work for Xf - Xo also. However, when writing the motion your final position is the 10-3 because you come back over the path you've already...
I have already done this problem enough times forwards and backwards to get the answer, so this is more of a theory question rather than help with homework.
The equation for Vavg.=displacement/time or deltaX/deltaT.
This equate to V=(X2-X1)/(T2-T1), correct?
In working through a problem...
Thank you for clearing up my error in the first approach, I can see it now. As for your suggestion, I have tried that as well and it yields the same answer as my second approach. I feel like a huge fool right now. I found my mistake and, come to find out, my second approach was correct after...
Homework Statement
The left ventricle of the heart accelerates blood from rest to a velocity of +26 cm/s. (a) if the displacement of the blood during acceleration is +2.0 cm, determine its acceleration (in cm/s^2). (b) How much time does blood take to reach its final velocity
Homework...
Homework Statement
If lim x--> a of [f(x) + g(x)]=2 and lim x--> a of [f(x) - g(x)] = 1, then find lim x--> a f(x)g(x)
Homework Equations
Theorems of continuity
The Attempt at a Solution
Since I'm not quite sure if what I began with was right, it didn't yield me any type of a...
1) integral from -4 to 2 of 2/sqrt(x) dx
I ended up with 4(sqrt2) - 4(sqrt-4); so I concluded it doesn't exist, correct?
2) integral (1+3x)x^2
This just seemed too simple to me, I ended up with f(x)=1/3x^3+3/4x^4+c, how's that look?
3) fifth derivative=0, find f(x); I ended up with...