Question
Asked Oct 22, 2019
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A particle of mass m moves in a circle of radius R at a constant speed v as shown. If the motion begins at point Q, determine the angular momentum of the particle about point P as a function of time.

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Expert Answer

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Step 1

Let v be the velocity of the particle at any point M, draw the following figure to analyse the motion of the particle.

MO
&+R0)
PERO)
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MO &+R0) PERO)

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Step 2

Write the expression for the angular displacement of the particle at any point on the circle.

vt
R
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vt R

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Step 3

Write the expression for the position ...

r RiRcos 0i Rsin 0j
R((1+ cos e)i+sin oj)
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r RiRcos 0i Rsin 0j R((1+ cos e)i+sin oj)

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Tagged in

Science

Physics

Angular Motion