Question

A carriage wheel makes 1500 revolution in going over a distance of 4.5 kilometer .find the radius [take pi r =3.4].

Answer 1

pi = 3.14

4.5 km = 4500 m

 

circumference = 2(pi)r

 

1500(2(pi)(r)) = 4500 m

 

3000(3.14)r = 4500

 

r = 4500/[(3000)(3.14)]

 

r = 0.47771 m

 

(0.47771 m)(100 cm/m) = 47.771 cm
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Answer 2

Answer:

0.47meters(approx)

Step-by-step explanation:

Wheel is a circle so:

2$\pi$r*1500=4500 meters

2$\pi$r=3m

r=3/6.28

r=0.47(approx)