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A Problem Solving Framework

A Problem Solving Framework. Based on the work of Heller & Heller University of Minnesota. The traditional “GUESS” method. Givens - Identify the “given” information Unknown - Identify what is wanted Equation - Select equation for solution Solution - Solve equation for unknown

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A Problem Solving Framework

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  1. A Problem Solving Framework Based on the work of Heller & Heller University of Minnesota

  2. The traditional “GUESS” method • Givens - Identify the “given” information • Unknown - Identify what is wanted • Equation - Select equation for solution • Solution - Solve equation for unknown • Survey - Make certain solution is realistic

  3. Focus on the Problem

  4. Describe the Physics

  5. Plan a Solution

  6. Execute the Plan

  7. Evaluate the Solution

  8. Using the Competent Problem Solver Answer Sheet: Example 1 • An airplane lands on a runway at 175mph. The plane uniformly slows to a stop over a distance of 4049ft. What is the average acceleration in meters/second squared? How many g’s does this represent?

  9. Using the Competent Problem Solver Answer Sheet: Example 2 • A car’s initial mass and velocity are m and v respectively. A truck’s mass and velocity are M and -V respectively. Assuming a head-on collision where they stick together, what is the speed of the vehicles immediately after the collision? The truck is twice the mass of the car; the speed of the car is one-half that of the truck.

  10. Using the Competent Problem Solver Answer Sheet: Example 3 • A toy rocket leaves the surface of the Earth with an acceleration of 35m/s2. After 1.3s, the rocket engine expires. Assuming no wind resistance as it coasts upward, how high does the rocket go?

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