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a) how far does the unicycle move if the wheel turns once?

give your answer in metres, correct to  2 decimal places

 

b) pierre enters a 100m unicycle race. how many times must the wheel rotate completely in order for pierre to travel 11m?

give your answer to the nearest whole number

 Mar 19, 2020
edited by Guest  Mar 19, 2020
 #1
avatar+23553 
+2

Circumference of circle = pi * d

                                      = pi 80   =    251.33 cm

 

 

B.      11 m    x     (100 cm/m)    /   (251.33 cm / rotation)  =   4.38 rotations ~~ 4 rotations

 Mar 20, 2020
 #2
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they are both wrong 

a was 2.51cm and b is wrong too

Guest Mar 20, 2020
 #3
avatar+23553 
+1

The first one is not wrong....you just didn't read  my answer and finish the work    251.33 cm   IS  2.5133 m      Don't be lazy !!!

 

The second one is correct too.....perhaps you did not enter the question correctly...??

how many times must the wheel rotate completely in order for pierre to travel 11m?     Maybe you meant 100 m   not 11 m ?

ElectricPavlov  Mar 20, 2020
 #4
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he meant 100

 Mar 25, 2020

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