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Find the linear velocity of a point moving with uniform circular motion, if the point covers a distance s in the given amount of time t. s

User Mreithub
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1 Answer

1 vote

Answer:

The linear velocity is represented by the following expression:
v = (s)/(t)

Step-by-step explanation:

From Rotation Physics we know that linear velocity of a point moving with uniform circular motion is:


v = r\cdot \omega (Eq. 1)

Where:


r - Radius of rotation of the particle, measured in meters.


\omega - Angular velocity, measured in radians per second.


v - Linear velocity of the point, measured in meters per second.

But we know that angular velocity is also equal to:


\omega = (\theta)/(t) (Eq. 2)

Where:


\theta - Angular displacement, measured in radians.


t - Time, measured in seconds.

By applying (Eq. 2) in (Eq. 1) we get that:


v = (r\cdot \theta)/(t) (Eq. 3)

From Geometry we must remember that circular arc (
s), measured in meters, is represented by:


s = r\cdot \theta


v = (s)/(t)

The linear velocity is represented by the following expression:
v = (s)/(t)

User Dannielle
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