A uniform disc of mass 2 kg and radius 15 cm is revolving around the central axis by 4 ${\rm{rad}}{{\rm{s}}^{ - 1}}$. The linear momentum of disc will be

$1.2\;{\rm{kg}} - {\rm{m}}{{\rm{s}}^{ - 1}}\;$

$1.0\;{\rm{kg}} - {\rm{m}}{{\rm{s}}^{ - 1}}\;$

$0.6\;{\rm{kg}} - {\rm{m}}{{\rm{s}}^{ - 1}}\;$

NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

1 Medium

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Understanding +4 | -1

A uniform disc of mass 2 kg and radius 15 cm is revolving around the central axis by 4

\mathrm{rad}{\mathrm{s}^{ - 1}}

. The linear momentum of disc will be

View answer and explanation

Correct option: D

None of these

Option D (None of these) is correct because the linear momentum of a rotating disc about its center is zero, as the center of mass is at rest.

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{m_1}

{m_2}\,({m_1} > {m_2})

\mathrm{rad}{\mathrm{s}^{ - 2}}

m

u

30^{\circ}

h