Question

A wheel with diameter 40cm makes 15 revolutions per minute how long will it take to cover a distance of 6.28 kilometres

Answer 1

Answer:

hey mate your answer is here...........

it will take approximately 5 hours .

given data :-

diameter of wheel =40 CM

RPM=50

total distance = 18840m =1884000cm

Now,

the wheels radius =40/2=20

perimeter = 2*pie*20=125.7cm

wheel cover 6285 CM in 1 minute

1cm in 1/6285

1884000 CM in = 1884000/6285= approximately 5 hours.....

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Answer 2

Refer attachment for answer