A solid cylinder has rotational kinetic energy of 435 J, calculate its new KE, when (i) its rotational speed is doubled (ii) its mass is halved. (iii) Its radius reduced in which Rf = 0.3 Rị Q22. i)

A solid cylinder has rotational kinetic energy of 435 J, calculate its new KE, when (i) its rotational speed is doubled (ii) its mass is halved. (iii) Its radius reduced in which Rf = 0.3 Rị Q22. i)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 56P: Calculate the rotational kinetic energy of a 12-kg motorcycle wheel if its angular velocity is 120...

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Question

A solid cylinder has rotational kinetic energy of 435 J, calculate its new KE, when
(i) its rotational speed is doubled
(ii) its mass is halved.
(iii) Its radius reduced in which Rf = 0.3 Rị
Q22. i)
ii) A car started from rest and travelled with acceleration of 8 m/s². Predict in which second
the car will cover exactly 60 m?

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