That is what I am thinking might be the case, but that would mean my professor is wrong because it is his final exam review. As for the free body diagram, I have decided to abandon the problem and the rest of the review for now because the exam is tomorrow and this professor hasn't cared enough...
I would think that the stress would be located in the center of the column. From the equations in my book, I only see where force and area are the quantities shown. The equation it gives me for force near the beginning of the chapter that this is reviewing equates it to length, a delta l, and a...
Homework Statement
For a concrete column of constant cross sectional area, what is the maximum possible height if the compressible strength is 2.0 x 107 N/m2? The density of concrete is 2.3 x 103 kg/m3.
Homework Equations
\frac{F}{A}
The Attempt at a Solution
I am not really sure what I am...
Homework Statement
I have run across another problem while reviewing for finals that I am not able to really understand, and this one I have no clue how to approach. I am given that a block is of mass 1 kg, it is placed on a spring of constant 500 N/m at the bottom of a frictionless plane...
Yeah, I have found that with physics. The book I have for my class doesn't really have anything on it though, so I figured use a calculus equation for it initially, but I realized that wouldn't work because I believe that just gets you the slope.
So then:
ax=24t-5
ay=45t-6
set them equal to 0:
ax=0
0=24t-5
5=24t
5/24=t
ay=0
0=45t-6
6=45t
6/45=t
They aren't equal, so the acceleration is never 0.
That makes a lot more sense then what I was doing. Thank you!
Homework Statement
So I am studying for my finals at the moment, and I came across a problem that I am not really sure how to assess. I am given that the velocity of a particle is determined by vx=12t2-5t, vy=15t3-6t. It wants me to find when the acceleration of the particle will be zero at...