Three masses are positioned at the following coordinates: 3.0 kg ...

[serike]

Three masses are positioned at the following coordinates: 3.0 kg at (3,2); 4.0 kg at (0,-1); and 5.0 kg at (5,-7). What are the coordinates of the center of mass of the system?
 
  What will be an ideal response?

Question 2

What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70. cm when the bike is moving 8.0 m/s?
 
  A) 91 m/s2
  B) 1.8  102 m/s2
  C) 2.7  102 m/s2
  D) 66 m/s2
  E) 2.1  10-2 m/s2

[triiciiaa]

Answer to Question 1

(2.8 , -2.

Answer to Question 2

B

[serike]

Thank you!

[triiciiaa]

Always glad to help...