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PREDICTION CHALLENGE: DOWNHILL RACE
OPTION 1.
GIVEN
Mystery cans, an incline, a meterstick
and stopwatch
TASK:
Determine the rotational inertia of
the mystery soup cans based on its rotational motion down an incline.
Assuming the rotational inertia is in the form: I = kmr2 determine the values of 'k' for each can.
POSTER: Complete derivation of equation, data, calculations and identification of mystery can.
OPTION 2.
GIVEN: A ring and a disk, inclined plane, meterstick, stopwatch
TASK: Predict which object will reach the bottom of the incline first.
Data:
POSTER: Multiple representations should include: energy bar chart(s)
EXTENSION: Determine the speed of each object at the bottom of the incline. Include a complete derivation of the equations.
Problem Scenario follow up
A hoop (hollow cylinder) and a solid sphere are rolling along a level surface at 4.2 m/s when they encounter an incline of 27°.
a. How far along the incline will the hoop roll before coming to a stop?
b. How far along the incline will the solid sphere roll before coming to a stop?
Source: Book of Phyz. Dean Baird
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