Question

The radius of the front wheel of Alex's bike is 45cm.
Alex goes for a cycle and travels 55.07km.
How many full revolutions did Alex's front wheel complete?
Just answer pls, if correct I will send you 115 points seperately

Answer 1

Answer:

195

Step-by-step explanation:

r=45 cm=0.45m=0.045km

dist travelled in one revolution=2πr=2*3.14*0.045=0.2826 km

dist travelled by alex= 55.07 km

so no of revolutions=$\frac{Total distance travelled}{Distance in 1 revolution}$

no of revolutions= 55.07/0.2826 ≈195

so approx. 195 revolutions