Question

The diameter of the wheel of the bus is 14 m. The wheel makes 10 revolutions in 5 seconds.
Then the speed of the bus in km/hr.​

Answer 1

Answer:

308/9 km/hr

Step-by-step explanation:

Diameter of wheel of a bus = 14 m

Radius = 7 m

1 revolution = 2×22/7×7 = 44 m

so, 14 revolution = 44×14 = 616 m

A bus takes 5 seconds to make 14 revolution

Speed of bus = 616 m /5 sec

Speed of bus = (616/5) × (5/18)km/hr

Speed = 616/18 km/hr = 308/9 km/hr

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