Small cart is being driven at 10 kilometre per hour if each wheel is 91 cm in diameter find the number of revolutions made by each wheel per minute
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Answer:
Speed of the cart = 10km/hr
= 10×1000/60 m/ min = 1000/6 m/min.
Diameter of the wheel = 91 cm= 0.91 m
Radius of the wheel = 0.91/2 m
Circumference of the wheel= 2πr
= 2 × (22/7) × (0.91/2) m= 22×0.13 m
No.of revolutions per minute= (1000/6)/(22×o.13) = 1000×100/(6×22×13)
= 1000×25/429
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