(10%) Problem 10: A holiday ornament hanging from a tree can be approximated as a uniform solid sphere of radius # that is free to rotate about an axis that is tangent to its surface. A playful cat gently swats at the ornament, giving its center an initial speed v. The sphere rotates about the axis until a line connecting the axis to the center of the sphere makes an angle to vertical. Axis Axis $ 50% Part (a) Write an expression for cos in terms of v, 7, and g. cos g = |(I Grade Summary Deductions Hints: 2 fora deduction. Hints remaining: -You will need to use conservation of total mechanical energy, where all of the initial No meaningful feedback available for the current submission. energy is the rotational kinetic energy of the ornament. -You will need to consider the potential energy when the ornament is at it its maximum angle. Use trigonometry to determine and expression for the change in height of the center of mass of the ornament. Submit Feedback: 1 fora deduction Potential 100 % Submissions Attempts remaining: 954 (0% per attempt) detailed view 1 2 3 4