A metal bar is in the xy-plane with one end of the bar at the origin. A force F⃗ =( 6.39 N )i +( -3.16 N )j is applied to the bar at the point x = 2.29 m, y = 3.19 m. **A)** What is the position vector r⃗ for the point where the force is applied?
Enter the x and y components of the radius vector separated by a comma.*

**B)** What is the magnitude of the torque with respect to the origin produced by F⃗ ?
Express your answer with the appropriate units.

**C)** What is the direction of the torque with respect to the origin produced by F⃗ ?
What is the direction of the torque with respect to the origin produced by ?
+x-direction
+y-direction
+z-direction
−x-direction
−y-direction
−z-direction

Momentum lab this lab uses a phet simulation. navigate to the phet momentum simulation. if you don’t see the image below when you click on the link, then you need to either enable adobe flash (click on the puzzle piece on your screen) or you need to install adobe flash (this is a free program). change the vectors to be momentum vectors only. they are yellow. make the mass of both balls the same. hit play and notice what happens to the momentum vectors before and after the collision. you might want to play the sim multiple times. click on restart or return balls to start over. to see numbers, check the show values box (inside the green box). red’s momentum vector before the collision is green’s momentum vector after the collision. question 1 options: shorter than longer than equal to question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion inelastic elastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: little all most none question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences.