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wholly unbent, teafes to ad any longer upon the 
Body it has pufhed before it : And as, after that In- 
ilant, the Spring A-, not being ,yet wholly un- 
bent, continues to ad upon the greater Body, the 
moving Force of the greater Body will Bill con- 
tinue to increafe, and confequently will more and 
more exceed the moving Force of the fmaller Body. 
But every one knows, that the Produds of the 
Maifes and Squares of the Velocities are equal in the 
two Bodies. 
Therefore the moving Forces, which we have 
proved to be unequal, are not proportional to the 
Produds of the Maifes and Squaresof the Velocities. 
Which was to be dcmonftrated. 
To confider this in a particular Example, let us 
fuppofe the Maifes of the two Bodies expofed to the 
Preifure of the Springs A and B y to be 4 and 1 re- 
fpedively ; and let the Spring B unbend itfelf, and 
thereby give the Body 1 its whole moving Force in 
one Second of Time. Then, at the End of that 
Second, the moving Force of the Body 4 will already 
exceed that of the Body 1, and will ftill grow greater 
during another Second of Time. For the Times are 
as the fquare Roots of the Maifes. 
Alfo, if the Maifes be 100 and 1, the moving Force 
of the Body 100, will, at the End of the firft Second 
of Time, be greater than that of the Body 1, and 
will continue to increafe during the Space of nine 
other Seconds. 
Corollary . When a bent Spring does, by unbend- 
ing itfelf, drive a Body before it, the larger that Body 
is, the greater will be the moving Force which it re- 
ceives from the Spring. 
Having 
