Question

two particles of equal masses have coordinates (2m,4m,6m)and (6m,2m,8m). of these particles one has velocity v1=2i m/s and other has v2=2jm/s at time t=0 the coordinate of their center of mass at time t=1s will be

a)4m,4m,7m. c)2m 4m 6m
b)5m,4m,7m. d)4m 5m 4m

Answer 1

The center of mass can be calculated by taking the masses you are trying to find the center of mass between and multiplying them by their positions. Then, you add these together and divide that by the sum of all the individual masses.

Answer 2

a)4m,4m,7m.

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