Research Papers in Physics and Astronomy


Date of this Version

November 1961


Published in American Journal of Physics (November 1961) Volume 29, Issue 11, pp. 786-787. Copyright © 1961 American Association of Physics Teachers. Online at Used by permission.


A problem suggested by Professor Gamow deals with the relationship between the transverse mass and the gravitational mass: A steamroller of mass m moves horizontally, in the +x direction, with velocity v, in a region of space in which there is a gravitational field intensity g vertically downward. Find the weight of the moving steamroller.

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