Question

The radius of the wheeel of a car is 28cm .Find The number Of rotations made by wheel in order to cover a distance of 4.4 km

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Answer 1

Answer:

2500

Step-by-step explanation:

radius =28 cm

Circumference equals 2 pi R

equals 2 cross times 22 over 7 cross times 28

equals 44 cross times 4

equals 176

Total distance =4.4km=4400m

Distance covered in 1 rotation =176cm  

Distance covered in 1 rotation =1.76m

Number of rotation=Total distance /Distance covered in one rotation

=4400/1.76

Total number of rotation=2500