In: Physics
Four particles are in a 2-D plane with masses, x- and y- positions, and x- and y- velocities as given in the table below:
| 
 m  | 
 x  | 
 y  | 
 vx  | 
 vy  | 
|
| 
 1  | 
 7.6 kg  | 
 -2.6 m  | 
 -4.7 m  | 
 3 m/s  | 
 -4.1 m/s  | 
| 
 2  | 
 9.3 kg  | 
 -3.5 m  | 
 3.6 m  | 
 -4.9 m/s  | 
 5 m/s  | 
| 
 3  | 
 8.9 kg  | 
 4.4 m  | 
 -5.5 m  | 
 -5.9 m/s  | 
 2 m/s  | 
| 
 4  | 
 8.6 kg  | 
 5.4 m  | 
 2.5 m  | 
 4.2 m/s  | 
 -2.9 m/s  | 
1) What is the x position of the center of mass?
2)What is the y position of the center of mass?
3)What is the speed of the center of mass?