Graph B)
There are five sections in this graph:
Velocity →↓
Section 1) Time (in second) 0 ~ 1 : The Velocity starts at the x-axis, a horizontal line which lies on the x-axis is created.
Section 2) Time (in second) 1 ~ 3 : A horizontal line is created in the positive area at 0.75 as the walking speed is 0.75m/s [E] Slope: 1.5(m)/2(s)
Section 3) Time (in second) 3 ~ 6 : No change in distance, so there's a horizontal line on the x-axis.
Section 4) Time (in seond) 6 ~ 7.5 : A horizontal line is created in the negative area at -0.53 as the walking speed is 0.53m/s [W]c or -0.53m/s [E] Slope: -0.8(m)/1.5(s)
Section 5) Time (in second) 7.5 ~ 10 : No change in distance, so there's a horizontal line on the x-axis.
Acceleration →↓
There's no acceleration in this graph. The line lies on the x-axis.
Graph C)
There are 5 sections in this graph
Velocity →↓
Section 1) Time (in second) 0 ~ 3 : A horizontal line is created in the negative area at -0.5 as the walking speed is 0.5m/s [W] or -0.5m/s[E] Slope: -1.5(m)/3(s)
Section 2) Time (in second) 3 ~ 4 : No change in distance, so there's a horizontal line on the x-axis.
Section 3) Time (in second) 4 ~ 5 : A horizontal line is created in the negative area at 1 as the walking speed is 1m/s [W] or -1m/s [E] Slope: -1(m)/1(s)
Section 4) Time (in second) 5 ~ 7 : No change in distance, so there's a horizontal line on the x-axis.
Section 5) Time (in second) 7 ~ 10 : A horizontal line is created in the positive area at 0.83 as the walking speed is 0.83m/s Slope: 2.5(m)/3(s)
Acceleration →↓
There's no accelerationin this graph. The line lies on the x-axis.
Graph D)
There are 4 sections is this graph:
Distance →↓
Section 1) Time (in second) 0 ~ 2 : The distance start from 0m, and stay for 2 seconds therefore a horizontal line lies on the x-axis.
Section 2) Time (in second) 2 ~ 5 : The line goes up with a positive direction and stop at 1.5m away the origin. Distance: 0.5(m/s)*3(s)
Section 3) Time (in second) 5 ~ 7 : The velocity is 0, that causes a horizontal line is drawn at 1.5m.
Section 4) Time (in second) 7 ~10 : The line decreases with a negative direction and stop at 0. Distance : -0.5(m/s)*3(s)
Acceleration →↓There's no acceleration in this graph. The line lies on the x-axis.
Graph E)
There are 4 sections in this graph:
Distance →↓
Section 1)
Time (in second) 1 ~ 4 : The speed increases in a speed of 0.125m/s Slope: 0.5(m/s)/4(s), so it will become a curve, a cureve which has a smaller slope at first and become gather and the line stop at 1m away the origin.
Section 2) Time (in second) 4 ~ 6 : The line goes up with a positive direction and stop at 2m away the origin. Distance: 0.5(m/s)*2(s)
Section 3) Time (in second) 6 ~ 9 : The line decreases with a negative direction and stop at 0.8m away thre origin. Distance: -0.4(m/s)*3(s)
Section 4) Time (in second) 9 ~ 10 : The velocity is 0, that causes a horizontal line is drawn at 0.8m
Acceleration →↓Section 1) Time (in second) 1 ~ 4 : A horizontal line is created at 0.125(m/s2) Slope: 0.5(m/s)/4(s).
Section 2 ~ 4) There're no acceleration in section 2 to 4. The line from 4 to 10 second is on the x-axis.
Graph F)
There are 3 sections in this graph:
Velocity →↓
Section 1) Time (in second) 1 ~ 4 : A horizontal line is created in the positive area at 0.26m as the walking speed is 0.26m/s Slope: 0.9(m)/3.5(s)
Section 2) Time (in second) 4 ~ 6.5 : No change in the distance, so there's a horizontal line on the x-axis.
Section 3) Time (in second) 6.5 ~ 10 : A horizontal line is created in the positive area at 0.43 as the walking speed is 0.43m/s Slope: 1.5(m)/3.5(s)
Acceleration →↓There's no acceleration in this graph. The line lies on the x-axis.
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