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Unreasonable Results A gymnast doing a forward flip lands
Chapter 4, Problem 19PE(choose chapter or problem)
Unreasonable Results A gymnast doing a forward flip lands on the mat and exerts a \(\text{500-N} \cdot \mathrm m\) torque to slow and then reverse her angular velocity. Her initial angular velocity is 10.0 rad/s, and her moment of inertia is \(\mathrm{0.050 ~kg \cdot m^2}\). (a) What time is required for her to exactly reverse her spin? (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent?
Questions & Answers
QUESTION:
Unreasonable Results A gymnast doing a forward flip lands on the mat and exerts a \(\text{500-N} \cdot \mathrm m\) torque to slow and then reverse her angular velocity. Her initial angular velocity is 10.0 rad/s, and her moment of inertia is \(\mathrm{0.050 ~kg \cdot m^2}\). (a) What time is required for her to exactly reverse her spin? (b) What is unreasonable about the result? (c) Which premises are unreasonable or inconsistent?
ANSWER:Step-by-step solution Step 1 of 5 Gymnast doing a forward flip, lands on the mat and suddenly reverses her angular velocity, calculate angular velocity.