+147 A bicycle is classified by the diameter of its tires. For example, a 20-inch bicycle has tires that are 20 inches in diameter. The number of times a bicycle tire rotates in a given period of time is directly related to the distance traveled in that period of time. A 26-inch bicycle is pedaled so that the tires rotate at a rate of 200 revolutions per minute. A 20-inch bicycle is pedaled so that its tires rotate at a rate of 200 revolutions per minute, as well. How many complete rotations does either bike complete in one second? Answer in a complete sentence.
+118687 Hi double mnk,
Both tires are rotating at the same rotational speed.
200 revolutions per minute
that is :
200 revolutions EVERY minute.
There are 60 seconds in a minute so in a second the bike would have to travel a lot less distance ... so DIVIDE (by 60 of course)
How many revolutions would it be in a second then?
Can you tell me now? They want an exact answer, don't round it off.
+118687 You could be smart and say the bike does not rotate at all. only the wheels rotate. LOL
