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Saturday, July 11, 2020 | History

2 edition of Some remarks on the rotation of projectiles found in the catalog.

Some remarks on the rotation of projectiles

R. W. Woollcombe

Some remarks on the rotation of projectiles

by R. W. Woollcombe

  • 376 Want to read
  • 34 Currently reading

Published by Printed at the Western Daily Mercury Office in [Plymouth .
Written in English

    Subjects:
  • Projectiles.,
  • Ballistics.

  • Edition Notes

    Statementby R.W. Woollcombe ....
    The Physical Object
    Pagination3 p. ;
    ID Numbers
    Open LibraryOL19311294M


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Some remarks on the rotation of projectiles by R. W. Woollcombe Download PDF EPUB FB2

A projectile launched on level ground with an initial speed v 0 at an angle θ above the horizontal will have the same range as a projectile launched with an initial speed v 0 at 90° − θ. (Identical projectiles launched at complementary angles have the same range.) will have a maximum range when θ = 45°.

But for real projectiles (exaggerated, at right), the acceleration is always toward’s Earth’s center, which means the trajectory must be a portion of an ellipse, rather than a parabola.

Full Title: Observations made on the Disappearance and Reappearance of Saturn's Ring in the yearwith some Remarks on his diurnal Rotation From Transactions of the Royal Irish Academy. Author: Ussher, Rev. : Rev. Henry. Ussher. The path followed by the object is called its trajectory.

Projectile motion occurs when a force is applied at the beginning of the trajectory for the launch (after this the projectile is subject only to the gravity). One of the key components of the projectile motion, and. Projectile motion is a special case of two-dimensional kinematics in which the object is projected into the air, while being subject to the gravitational force, and lands a distance away.

In this Rotation Angle and Angular Velocity - Physics LibreTexts. Galileo gets credit he does not deserve for the parabolic nature of projectile motion, the law of inertia, and the “Galilean” principle of relativity.

In reality, his treatments of all of these matters were riddled with errors and fundamental misunderstandings. Transcript Pick up a roc.

Concluding remarks. We reviewed several projectile–defeat concepts which result in high ballistic efficiencies against long rods, armor piercing projectiles and shaped charge jets. We have shown that all of these concepts are based on two simple principles: high strength materials and asymmetric forces on the impacting by: The mathematical theory underlying many sporting activities is of considerable interest to both applied mathematicians and sporting enthusiasts alike.

Here Professor de Mestre presents a rigorous account of the techniques applied to the motion of projectiles. This equips the reader for the final section of the book in which an enlightening collection of sporting applications is considered.

The rotation of fragments produced by catastrophic impacts into basalt targets was investigated using framing camera records taken by Fujiwara and Tsukamoto (, Icarus44, –).Most of the cores have low rotation rates, of the order 1 rev sec −1 or less.

Many spall fragments have high rotation rates in the strong shear field produced in the target material by by:.