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A point on a wheel moves at 32π/9 radians per minute. How many seconds are required for the point to complete 7 revolutions? 

Please help explain how to do this question, I am completely lost!

 Apr 16, 2020
 #1
avatar+21004 
+2

Step 1:  Since the point moves at the rate of 32pi/9 radians per minute, divide this number by 60 to find the 

              rate per second.

 

Step 2:  Since there are 2pi radians in one revolution, multiply this number by 7 to find the number of radians

              in 7 revolutions.

 

Step 3:  Divide the answer of step 2 by the answer of step 1 to find how may seconds that it will take.

 Apr 16, 2020
 #2
avatar+46 
+1

Okay I followed those steps and got 236.3 seconds as my answer, is that correct? Thanks so much for your help:)

lightsup  Apr 16, 2020

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