1- Draw the velocity and acceleration for the following five displacements diagrams .Locate the maximum and minimum points of velocity and acceleration. The y-axis represent displacement and the x-axis is the time.

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Biomechanics III
Home Work
1- Draw the velocity and acceleration for the following five displacements diagrams .Locate
the maximum and minimum points of velocity and acceleration. The y-axis represent
displacement and the x-axis is the time.
10
-8
0.51
D
-0.51
-1-
20
04
45
60
Extension to [021]
0.8
x 12
X
8
1.6
10
20
-1
S
30
1.0
0.5
0
-0.5
-1.0
0
90
180
T
Motion Analysis
270
T
1
360
2
t
2- The swinging motion of the upper arm may be described as the follows;
0= 10 sin 0.06 t
where 0 is the relative angle between the upper arm and the trunk in sagittal plane and the time t
ranged from 0 to 60 sec.plot angular position,velocity and acceleration and find the maximum
acceleration.
3- A sport man make a jump ,the vertical position of his center of gravity can be expressed
as the following; y=6t³-5t² +8t-20
He complete his motion at 20 sec
Calculate the maximum vertical velocity and acceleration and the time at which the
maximum velocity and acceleration will occurred.
4- Use graphical method to draw velocity and acceleration for Ankle given in the figures ;
Transcribed Image Text:Biomechanics III Home Work 1- Draw the velocity and acceleration for the following five displacements diagrams .Locate the maximum and minimum points of velocity and acceleration. The y-axis represent displacement and the x-axis is the time. 10 -8 0.51 D -0.51 -1- 20 04 45 60 Extension to [021] 0.8 x 12 X 8 1.6 10 20 -1 S 30 1.0 0.5 0 -0.5 -1.0 0 90 180 T Motion Analysis 270 T 1 360 2 t 2- The swinging motion of the upper arm may be described as the follows; 0= 10 sin 0.06 t where 0 is the relative angle between the upper arm and the trunk in sagittal plane and the time t ranged from 0 to 60 sec.plot angular position,velocity and acceleration and find the maximum acceleration. 3- A sport man make a jump ,the vertical position of his center of gravity can be expressed as the following; y=6t³-5t² +8t-20 He complete his motion at 20 sec Calculate the maximum vertical velocity and acceleration and the time at which the maximum velocity and acceleration will occurred. 4- Use graphical method to draw velocity and acceleration for Ankle given in the figures ;
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