For an object with the centre of mass at the origin, the x-coordinates of particles of the object _____
A. may be all positive
B. may be all negative
C. may be all non-negative
D. cannot be predicted
Answer:C
For an object with the centre of mass at the origin, the x-coordinates of particles of the object _____
A. may be all positive B. may be all negative C. may be all non-negative D. cannot be predicted