Rolling Objects

PREDICTION CHALLENGE: ROLLING OBJECTS

GIVEN: A ring and a disk, inclined plane, meterstick, stopwatch

TASK: Predict which object will reach the bottom of the incline first.

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.

(Thanks to Dolores Gende for this activity)

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