| 单词 | ballistic pendulum |
| 释义 | ballistic pendulum (once / 537242 pages) n WORD FAMILY ballistic pendulum: ballistic pendulums USAGE EXAMPLESOne was the determination of the288 velocity of a bullet fired from a rifle into a Robins ballistic pendulum. Gray, Andrew, Lord Kelvin—An account of his scien...(2012) The experiments were made in the usual manner by firing bullets into a ballistic pendulum, and recording the swing of the pendulum. Garnett, William, Heroes of Science: Physicists(2012) Robins, in 1742, first measured the muzzle-speed of the shot by firing into a ballistic pendulum and noting the swing of the pendulum. Various, The New Gresham Encyclopedia. Vol....(2010) n a physical pendulum consisting of a large mass suspended from a rod; when it is struck by a projectile its displacement is used to measure the projectile's velocity Hypo|Hyper gun pendulum a ballistic pendulum consisting of a suspended gun; the velocity of a projectile in the bore of a gun can be measured by the recoil when the gun is discharged compound pendulum, physical pendulum pendulum consisting of an actual object allowed to rotate freely around a horizontal axis |
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