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A loop-the-loop section of a track is set up in a General Physics laboratory. A block is sliding on the
surface of the track and passes through points A, B, C, D as shown in the diagram. Assume the track-
block system has friction that is low enough it can be ignored.
1.
2.
Match the freebody diagram shown below with the forces exerted on the block at point D
3.
4.
A
5.
D
B

1
O 2
03
O 4
O 5
F
5.

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