Recent content by Bob_Dobbs

Well, I tried to do that. I figured it should just be final minus initial, but I tried ([9.00-3.00] \hat{i} + [7.00 + 2.00] \hat{j} ) = (6.00 \hat{i} + 9.00 \hat{j} )...oohhhh...but I forgot to divide by three, which would give me 2i and 3j, which is the answer I've been trying to get (lol, yes...

yeah, they're pretty much the same as x and y (i being x and j being y [k is z if it's 3d...i have no clue why they can't just use x,y,z]). What I don't understand though is how exactly I'm supposed to take the derivative of a constant. If I derive (3.00i-2.00j) I'd get 3.00-2.00dj/di, as far...

I have a problem asking me to find the acceleration of a particle when its v_i = (3.00 \hat{i} -2.00 \hat{j} ) m/s and then 3 seconds later, v = (9.00 \hat{i} + 7.00 \hat{j} ) m/s The big problem here is that my book doesn't say anything whatsoever about getting an acceleration when...