4. Can you go around a curve with constant acceleration? Explain 6. If you whirl a yo-yo about your head in a horizontal circle, in what direction must a force act on the yo-yo? What exerts the force? 7. You swing a yo-yo about your head in a horizontal circle, then you swing another one with twice the mass, but you don't change the length of the string or the period. How do the tensions in the strings differ? 8. A 2500 kg car enters a curve with a radius of 45 m. If the car is moving at a speed of 35 m/s, what is the centripetal force that maintains the car's circular motion through the curve?

4. Can you go around a curve with constant acceleration? Explain 6. If you whirl a yo-yo about your head in a horizontal circle, in what direction must a force act on the yo-yo? What exerts the force? 7. You swing a yo-yo about your head in a horizontal circle, then you swing another one with twice the mass, but you don't change the length of the string or the period. How do the tensions in the strings differ? 8. A 2500 kg car enters a curve with a radius of 45 m. If the car is moving at a speed of 35 m/s, what is the centripetal force that maintains the car's circular motion through the curve?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 24P

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