Answer to Question #191455 in Engineering for Ola

Question #191455

. A bicycle has wheels with a diameter of 42cm.

The bicycle is ridden in a straight line at a constant speed. The wheel makes 250

revolutions per minute.

What is the speed of the bicycle in kilometres per hour?


1
Expert's answer
2021-05-11T07:24:26-0400
"v=\\omega r\\\\v=2\\pi(250)(0.21)\\frac{60}{1000}=19.8\\frac{km}{h}"


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