Question

Rotate 10 times per vase with a distance of 32 m.Then How many times does it take to travel 4 km?​

Answer 1

Answer:

35.35 cm

Explanation:

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

⇒r=0.3535meters

∴r=35.35cm