Department

Mechanical Engineering

Document Type

Article

Publication Title

Physics Teacher

ISSN

0031-921X

Volume

51

Issue

5

DOI

10.1119/1.4801367

First Page

310

Last Page

310

Publication Date

5-1-2013

Abstract

A $1 plastic helicopter toy (called a Wacky Whirler) can be used to demonstrate lift. Students can make basic measurements of the toy, use reasonable assumptions and, with the lift formula, estimate the lift, and verify that it is sufficient to overcome the toy's weight.

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