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PREDICTION CHALLENGE: LOOP-THE-LOOP
TASK: Predict the minimum height to release a car so that it can safely make it around the loop.
GIVEN: track pieces, Hot Wheels car, carbon paper, balance, meterstick
PART I.
a. Assemble a hill at a height h.
b. Determine the exit velocity of the car.
c. Calculate the energy dissipated by friction.
PART I.
- data
- energy bar chart
- COE statement
- complete calculations
PART II:
- FBD (parts b, c)
- net force equation
- energy bar chart
- COE statement
- complete calculations
PART II.
a. Assemble the roller coaster with the loop.
b. Calculate the minimum velocity of the car at the top of the loop.
c. Determine the minimum height for the car to safely negotiate the top of the loop.
d. Test your prediction.
CONCLUSION:
1. Did the Hot Wheels car negotiate the loop safely?
2. Discuss sources of experimental errors.
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