Question

Three objects are positoined along the x axis as follows: 4.4 kg at x= +1.1 m, 3.7kg at x= -0.80m, and 2.9 kg at x=-1.6m. The acceleration due to gravity is the same averywhre. What is the distance from the location of the center of gravity to the location of the center of mass for this system?

Answer 1

0. Since the acceleration due to gravity is the same everywhere the center of gravity and center of mass will be in the same spot, they are essentially interchangeable terms.

Answer 2

how it become 0? can you explain for me to understand and know where does the zero came from..thanks :)

Answer 3

Center of mass and center of gravity refer to the exact same thing as long as the acceleration due to gravity is the same at all points in the mass (this is essentially always, I highly doubt you'll ever have a problem where this is not the case). Since they are at the same point there is 0 distance between them