- #1

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**Linear Velocity....**

## Homework Statement

When do I use

v = S/t

OR

v = R*w

s= arc length

w = angular velocity

t = time

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- Thread starter Miike012
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- #1

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When do I use

v = S/t

OR

v = R*w

s= arc length

w = angular velocity

t = time

- #2

HallsofIvy

Science Advisor

Homework Helper

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You use the formulas that use the information you are given!

If you are given an "angular velocity" or an "radius", R, then you use v= Rw. If you are given an actual

- #3

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the equation v = R*w shows that when you have a simple rotating object, and when w is constant (not changing), the linear velocity of the object (v) increases as you go further away from the origin (as R increases). As R increases, the object has to travel more but w is the same, so v must increase also.

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