Recent content by xxlvh

Awesome, thanks a ton for helping me get started!

1. The density of part A (p)(kg/m^3) and in part B (p/2)(kg/m^3). Find the coordinate (x,y) of the center of mass of this object. (consider a piece of the object that is one meter in the z direction) 2. R = sum(m*r) / sum(m)...maybe? I am completely stumped on how to start this problem my...

Solving for V, I got 23 m/s. According to the book that is the correct answer! This will add 3% onto my overall mark :) Thank you, I really owe you one!

Okay...So 38 m = V x (2vsin22/-9.81) Are you able to combine the two V's, if one is horizontal and one is vertical? When I tried that in the next step I have -372.78m=2v2sin 22o...when working through it though, it ends up with the root of a negative number so I'm assuming I made a mistake...

Alright...I've gotten it to: t = -2(Vsin22o) / -9.81m/s2

Okay, thank you. And Vi would be...22? Sorry for all the questions. I wasn't having any problems in the whole unit up until this last question!

Hmm. The formulas I used were just slightly different, I've never seen that one before...what would the variables of "s" and "u" stand for?

If I have the angle and split it into the x and y components, wouldn't I still need at least one velocity given to solve for any of the other sides?

1. An object was thrown up at an angle of 22o from the horizontal. If this object travels 38 m horizontally, what was the speed at which the object was thrown? angle = 22o dhorizontal = 38m g = -9.81m/s2 I have absolutely no clue on how to even go about starting to solve this...