A horizontal disc rotating freely about a vertical axis through its centre makes 90 revolutions .... VIDEO
A horizontal disc rotating freely about a vertical axis through its centre makes 90 revolutions per minute. A small piece of wax of mass \(m\) falls vertically on the disc and sticks to it at a distance \(r\) from the axis. If the number of revolutions per minute reduce to 60 , then the moment of inertia of the disc is 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live
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