The rotating systems shown in the figure differ only in that the two identical movable masses are positioned a distance r from the axis of rotation (left), or a distance r/2 from the axis of rotation (right). If you release the hanging blocks simultaneously from rest,
A. the block at left lands first.
B. the block at right lands first.
C. both blocks land at the same time.
D. it is impossible to tell which block reaches the bottom first.
Answer:B
The rotating systems shown in the figure differ only in that the two identical movable masses are positioned a distance r from the axis of rotation (left), or a distance r/2 from the axis of rotation (right). If you release the hanging blocks simultaneously from rest,
A. the block at left lands first. B. the block at right lands first. C. both blocks land at the same time. D. it is impossible to tell which block reaches the bottom first.