A body of moment of inertia of `3 kg m^(2)` rotating with an angular velocity of 2 rad/s has the same kinetic energy as that that of mass 12 kg moving

Question

A body of moment of inertia of `3 kg m^(2)` rotating with an angular velocity of 2 rad/s has the same kinetic energy as that that of mass 12 kg moving

A body of moment of inertia of `3 kg m^(2)` rotating with an angular velocity of 2 rad/s has the same kinetic energy as that that of mass 12 kg moving with a velocity of
A. 1 m/s
B. 2 m/s
C. 4 m/s
D. 8 m/s

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`(1)/(2)I omega^(2)=(1)/(2)m v^(2)`
`therefore (1)/(2)xx3xx4=(1)/(2)xx12 v^(2)`
`therefore " " v^(2)=1 " " v =1 m//s`.

4 views Answered 2023-02-05 15:29