A 1.6-kg 18-cm-diameter solid sphere is rotating about its diameter at 77 rev/min. (a) What is...
A 1.6-kg 18-cm-diameter solid sphere is rotating about its diameter at 77 rev/min. (a) What is its kinetic energy? 218.4 Incorrect: Your answer is incorrect. J (b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball? rev/min
Homework Answers
Use equation for rotational kinetic energy of a solid sphere
after finding its moment of inertia as shown below
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A 1.6-kg 18-cm-diameter solid sphere is rotating about its
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