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A particle starts from rest and move...

A particle starts from rest and moves with an angular acceleration of 3 ` rad //s^(2) ` in circle of radius 3 m . Its linear speed after 5 seconds will be

A

15 m/s

B

30m/s

C

45m/s

D

7.5m/s

Text Solution

Verified by Experts

The correct Answer is:
C
`omega = alpha t = 3xx5=15 rad /s " " therefore V = r omega = 3xx10 = 45 m//s`
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Knowledge Check

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