Question
Asked Oct 24, 2019
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Two people start at the same place and walk around a circular lake in opposite directions. One walks with an angular speed of 1.7 x 10-3  rad/s While the ohter has an angular speed of 3.4 x 10-3 rad/s. How long will it be before they meet?

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Expert Answer

Step 1

The figure shows the two people walk around in a circular lake in opposite directions.

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Step 2

The total path travelled by the two people around the circular lake is,

The angular position of the two people around the circular lake is,

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в — в, — 2я а - af в, — од

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Step 3

Find the time period of the two people before ...

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(a)2 t= a-a2 2(3.14) 1.7x10 rad/s-(3Ax10 rad/s) 6.28 1.7x10 rad/s+3.4x10 rad/s =1231s

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Science

Physics

Angular Motion

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