# Recent content by srmeier

1. ### Newton's laws, Pulley

In order for the man to move at constant velocity the net force on him must be zero. He can't move at a constant velocity if there is an unbalanced force on the right (think about it: the right side of the rope would accelerate but the left side wouldn't? would the rope not rip in this case?)...
2. ### Velocity in polar coordinates

1. Homework Statement I don't understand why when we derive the velocity equation of motion in polar coordinates we start with position equal to R times R hat and not (theta times theta hat + R times R hat). 2. Homework Equations none really.. 3. The Attempt at a Solution Is there an...
3. ### Looking at a Masters in Comp Sci

Hey Guys, I'm currently finishing up my B.S in Physics (going into the last semester of Junior year) and plan on getting a Masters in Computer Science concentrating on software engineering. I'm curious if anyone else has made a similar career choice and how it worked out. Also, which...
4. ### Acceleration Help?

Re: Acceleration Help????? kinematic equation = equation of motion (this usage should be in your book)
5. ### Acceleration Help?

Re: Acceleration Help????? My apologizes, llello is right.
6. ### Acceleration Help?

Re: Acceleration Help????? Look for a kinematic equation for position not velocity.
7. ### Acceleration Help?

Re: Acceleration Help????? a book is dropped from the ground?
8. ### Really confused vector momentum problem

You're not "adding vectors." You need to apply conservation of momentum. Momentum is a vector quantity. Thus if you know the momentum vector before the collision, the sum of the individual momenta afterwards must equal what?
9. ### Really confused vector momentum problem

I don't believe law of cosines will get you anywhere. Think about breaking your velocity vectors into their components.
10. ### What does light look like?

To have a visual representation of light, light would have to reflect off light and hit your eye. This doesn't occur in reality as far as I'm aware.