Mechanics: Circular Motion and Gravitation
Circular Motion and Gravitation: Audio Guided Solution
Problem Set CG7, Question 2:
In the World Peace Lab, Mia empties a bag of peas into a bucket and whirls the peas in a vertical circle using a 1.045-m long rope. What minimum speed can the bucket have so that the peas still remain in the bucket while moving through the top of the circle?
Audio Guided Solution
Habits of an Effective Problem Solver
- Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., m = 61.7 kg, v= 18.5 m/s, R = 30.9 m, Fnorm = ???.
- Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- Identify the appropriate formula(s) to use.
- Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
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Get more information on the topic of Circular Motion and Gravitation at The Physics Classroom Tutorial.
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