تم الحل ✓
categoryالفيزياء
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
Many aspects of a gymnast's motion can be modeled by representing the gymnast by four segments consisting of arms, torso (including the head),
thighs, and lower legs, as in the figure below.
a
Thigh
Arm
Leg
60°
60°
Torso
b
x
In the figure, (b) shows arrows of lengths rcg locating the center of gravity of each segment. Use the data below and the coordinate system shown in
figure (b) to locate the center of gravity of the gymnast shown in figure (a). Masses for the arms, thighs, and legs include both appendages. (Enter
your answers in m, to at least three significant figures.)
HINT
Xcg
Ycg
=
Segment
Mass (kg) Length (m) cg (m)
Arms
6.81
0.548
0.242
Torso
33.6
0.605
0.337
Thighs
14.1
0.370
0.153
Legs
7.50
0.350
0.227
m
m
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