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A point on the rim of a 0.30-m-radius rotating ..

by debo
Tags: 030mradius, point, rotating
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debo
#1
Dec8-08, 07:11 AM
P: 2
A point on the rim of a 0.30-m-radius rotating wheel has a tangential speed of 4.0 m/s. What is the tangential speed of a point 0.20 m from the center of the same wheel?

a. 1.0 m/s
b. 1.3 m/s
c. 2.7 m/s
d. 8.0 m/s

i have been trying to do this for hours now.somebody please help
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CompuChip
#2
Dec8-08, 07:13 AM
Sci Advisor
HW Helper
P: 4,300
What formula do you know that relates tangential speed to radius?
debo
#3
Dec8-08, 07:19 AM
P: 2
can anyone help me?

CompuChip
#4
Dec8-08, 07:28 AM
Sci Advisor
HW Helper
P: 4,300
A point on the rim of a 0.30-m-radius rotating ..

Quote Quote by CompuChip View Post
What formula do you know that relates tangential speed to radius?
Please read this first. Then, you might want to answer that question. The solution immediately follows (i.e. I cannot make it any easier for you without giving the answer).


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