Question

travels 990 metres in which euch wheel makes 450 complete revolutions. Find the radius of the whee​

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

Answer

35.35 cm

Let the radius of each wheel be r meters. Then,

Circumference of each wheel = 2πr=2×  

7

22

​  

×rmeters

⇒ Distance covered by the wheels in one revolution = 2×  

7

22

​  

×rmeters

⇒ Distance covered by the wheels in 450 revolutions = 2×  

7

22

​  

×r×450meters

It is given that the car travels 1 kilometer i.e. 1000 meter distance when its each wheel makes 450 revolutions.

⇒2×  

7

22

​  

×r×450=1000

⇒r=  

2×22×450

7×1000

So, ​  

 ⇒r=0.3535meters

∴r=35.35cm

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