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avatar+1898 

A hamster runs in its wheel whose radius is 3 inches. The wheel completes 7.3 revolutions in 6 seconds.

What is the linear velocity of the hamster's wheel?

approximately 15.9 inches per second

 

approximately 22.9 inches per second

 

approximately 43.8 inches per second

 

approximately 137.6 inches per second

 Apr 2, 2020
 #2
avatar+23566 
+2

First find the circumference    pi x d   = pi 2r  = pi *6     or   6pi inches  

 

6pi inches  /rev   x   7.3 rev / 6 sec  =    (6pi *7)/6  in/sec  = .......   in/s

 Apr 2, 2020
 #3
avatar+1898 
+1

would it then be 22.9 inchs per second?

jjennylove  Apr 2, 2020
 #5
avatar+111321 
+1

Good job, Jenny    !!!!

 

cool cool cool

CPhill  Apr 2, 2020
 #7
avatar+1898 
0

thank you for your help!

jjennylove  Apr 2, 2020
 #4
avatar+111321 
+2

7.3 revs  =  (7.3) *2pi (3)   =    43.8 pi    in =  distance  traveled  in 6  sec

 

43. 8   pi  /  6  =  7.3 pi    in  = distance traveled in one sec

 

Linear  velocity /  s  =    distance  traveled  in  1  sec     22.9  in   / sec

 

 

cool cool cool

 Apr 2, 2020
 #6
avatar+1898 
0

Awesome! thank you (:

jjennylove  Apr 2, 2020

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