Three small masses are positioned at the following coordinates: ...

[karlynnae]

Three small masses are positioned at the following coordinates: 3.0 kg at (3.0 m, 2.0 m); 4.0 kg at (0.0 m, -1.0 m); and 5.0 kg at (5.0 m, -7.0 m). What are the coordinates of the center of mass (or center of gravity) of this system?
 
  What will be an ideal response?

Question 2

In another solar system, a planet has a moon that is 4.0  105 m in diameter. Measurements reveal that this moon takes 3.0 x 105 s to make each orbit of diameter 1.8  108 m. What is the mass of the planet? (G = 6.67  10-11 N  m2/kg2 )
 
  A) 3.4  1024 kg B) 4.8  1024 kg C) 1.2  1024 kg D) 1.7  1024 kg E) 2.4  1024 kg

[thall411]

Answer to Question 1

(2.8 m, -2.8 m)

Answer to Question 2

B

[karlynnae]

Thanks for the timely response, appreciate it

[Sarahjh]

Excellent