A phonograph turn table rotates at 50 rev/ min . Its angular speed in rad/sec is ? a) 8.164 rad.sec-1 b) 5.23 rad.sec-1 c) 52.3 rad.sec-1 d) 81.64 rad.sec-1

Given that

A phonograph turntable rotates at 50 rev/ min.

We need to find the angular speed of the phonograph in rad/s.
We know the following conversions :
1 revolution = 6.28 radian

1 minute = 60 seconds

Therefore

50 X rev/min

= 50 X 6.28rad/60s

= 5.28rad/s

The angular speed of the phonograph is 5.28rad/s.

Was this answer helpful?

  
   

0 (0)

Upvote (1)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *

*

*

BOOK

Free Class

Ask
Question