Physics · System of Particles and Rotational Motion
A square frame is constructed from four uniform rods AB, BC, CD, and DA, having masses 2m, 3m, 4m, and 5m respectively. Each rod has a length of 2a. The frame lies in the xy-plane with its center at the origin, rod AB parallel to the x-axis at y = a, and rod CD parallel to the x-axis at y = -a. If a = 1m, which region contains the coordinates (x, y) of the center of mass of this frame?
- 1-1 < y < 0 and -1 < x < 0
- 2-1 < y < 0 and 0 < x < 1
- 31 < y < 2 and 2 < x < 3
- 41 < y < 2 and 0 < x < 1✓
Correct answer
1 < y < 2 and 0 < x < 1
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