Answer :
The total distance travelled on the cycle is 30.46m and the acceleration is the last 8 seconds is 0.85 m/s².
What is acceleration?
"Acceleration is the measure of the speed at which velocity changes."
OR "Acceleration depends upon the velocity if the velocity continously increases or decreases the acceleration will be produced."
Positive acceleration results from continuously increasing velocity.
Negative acceleration will be negative if the velocity is continuously decreasing.
FORMULA
Acceleration is defined as a change in velocity divided by time, or a = (Vf-Vi)/t UNIT.
Meter/second+square, or m/S², is the SI unit of velocity in the MKS system.
a. Total distance = Hypotenuse₁ + mid distance + Hypotenuse₂
Hypotenuse₁ = [tex]$ \sqrt{10^2 + 6^2} $[/tex]
Hypotenuse₁ = 11.66m
mid distance = 12 - 6
= 6m
Hypotenuse₂ = [tex]$ \sqrt{10^2 + (20-12)^2} $[/tex]
Hypotenuse₂ = [tex]$ \sqrt{10^2 + (8)^2} $[/tex]
Hypotenuse₂ = 12.80m
Total distance = 11.66m + 6m + 12.80m
Total distance = 30.46m
b. Acceleration [tex]{\displaystyle ={\frac { \text{v - u} }{t}}[/tex]
[tex]\displaystyle = {\frac { \text{12.80 - 6} }{8}[/tex]
[tex]\displaystyle = {\frac { 6.80 }{8}[/tex]
0.85 m/s²
Thus, the total distance travelled on the cycle is 30.46m and the acceleration is the last 8 seconds is 0.85 m/s².
Learn more about acceleration
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