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在地面上运动的物体,除受地心引力作用外,由于地球自转,还受两个惯性力,即科里奥利力和惯性离心力的作用。本文拟研究这两个惯性力对抛体运动及重力加速度g的影响。 (一)地球自转对拋体运动的影响惯性离心力所引起的加速度,对运动范围不大的抛射体,和地球自转角速度的平方正比,而地球自转角速度很小,大约ω=7.3×10~(-5)l/秒,惯性离心力对抛体运动的影响比科氏力小得多(科氏力和ω的一次方正比),所以我们在研究抛体运动时可以忽略它,即以重
In addition to the gravitational effect, the objects moving on the ground are also affected by two inertial forces, Coriolis force and inertial centrifugal force, due to the Earth’s rotation. This article intends to study the influence of these two inertial forces on the projectile motion and the gravitational acceleration g. (A) Earth’s rotation on the projectile movement The inertial centrifugal force caused by the acceleration of the small range of motion projectile, and Earth’s rotation angular velocity square proportional to the Earth’s rotation angular velocity is small, about ω = 7.3 × 10 ~ ( -5) l / sec, inertial centrifugal force on the projectile movement is much smaller than the Coriolis force (Coriolis force and ω a square proportional), so we can ignore it in the study of projectile movement, that is,