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Front and Rear Brakes
# 1K20.40


Description: The truck has holes drilled into both sets of wheels to allow a metal rod to be inserted to simulate locked brakes. Let car slide down incline and observe which gives more stable braking.

Parts: breaking fire truck, incline plane

Purchased/Built: purchased

Quant. in Demo Room: 1

Source: K-Mart

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 03-06 A toy car slides down an incline with either front or rear wheels locked.
Sutton M-53 A toy car is modified so either the front or rear brakes can be locked. Slide down the incline plane for each case.
Meiners 8-4.7 A car rolls down an incline with either front or rear wheels locked.
Freier and Anderson Mk-3 A car slides down an incline with either front or rear wheels locked.
The Physics Teacher TPT 28(8),522 Construction details for a model car in which pulling a pin applies front, rear, or both sets of brakes to a car rolling down an incline.

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