A disc of radius 0.1 m starts from rest with an angular acceleration of ` 4.4 rad//s^(2)` .Then linear velocity of the point on its after 5 s is

Question

A disc of radius 0.1 m starts from rest with an angular acceleration of ` 4.4 rad//s^(2)` .Then linear velocity of the point on its after 5 s is

A disc of radius 0.1 m starts from rest with an angular acceleration of ` 4.4 rad//s^(2)` .Then linear velocity of the point on its after 5 s is
A. `0.22//s`
B. `2.2 m//s`
C. `4.4 m//s`
D. `1.1 m//s`

Monjur Alahi

5 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 - B
`omega_(1)=0,omega_(2)=?`
` alpha = (omega _(2) - omega _(1))/(t)" " therefore omega _(2)= omega_(1)+alphat`
`=22`
`v_(2)=r omega _(2) =0.1xx22=2.2 m//s`

5 views Answered 2023-02-05 15:29