The Speed and Force of a Projectile

Part of the Undergraduate Lecture Notes in Physics book series (ULNP)


In our final reading selection from Galileo’s Dialogues, we find Salviati, Sagredo and Simplicio in the midst of a discussion of the motion of projectiles. By treating a projectile’s motion as a combination of uniform motion in the horizontal direction, and naturally accelerated motion in the vertical direction, they have discovered that its path forms one of Apollonius’s conic sections: the parabola. But can one determine the speed of the projectile at any and every point along its trajectory? How can it be calculated and what determines the force of impact? These are the questions to which they now turn.


Uniform Motion Vertical Speed Horizontal Momentum Heavenly Body Uniform Speed 
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Copyright information

© Springer Science+Business Media, LLC 2015

Authors and Affiliations

  1. 1.Wisconsin Lutheran CollegeMilwaukeeUSA

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