Question

14. A small cart is being driven at 10 km per hour. If
each wheel is 91 cm in diameter, find the number of
1.​

Answer 1

Answer:

Diameter of circular wheels = 91 cm

=0.91 m

Therefore, Circumference of circular wheels = 2×π×d/2 (here r=d/2)

= π×d = 3.14×0.91 = 2.8574 m

Now, distance covered by wheels in an hour is 10 kms, that means 10,000 Ms in 60 minutes

So distance covered, in 1 minute = 10000÷60=166.67 ms

Hence, number of revolution by wheels in one minute = 166.67 ÷2.8574 = 58.33=

58 complete revolution in one minute.

Step-by-step explanation:

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