Sentence Examples


  • The amount, however, still depends on the time of flight, as the retardation of the air to the falling velocity may be neglected in the case of flat trajectory guns.
  • In the ancient theory due to Galileo, the resistance of the air is ignored, and, as shown in the article on Mechanics (§ 13), the trajectory is now a parabola.
  • Niven, F.R.S., called the degree table, determines the change of direction of motion of the shot while the velocity changes from V to v, to shot flying nearly horizontally, To explain the theory of this table, suppose the tangent at the point of the trajectory, where the velocity is v, to make an angle i radians with the horizon.
  • Resolving normally in the trajectory, and supposing the resistance of the air to act tangentially, (18) v(di/dt) =g cos i, where di denotes the infinitesimal decrement of i in the infinitesimal increment of time dt.
  • W /nd2 = C, (16) S(V) - S(v) = for cos i to be undistinguishable from unity, equation (16) becomes In a problem of direct fire, where the trajectory is flat enough (19) v(di/dt=g, or di/dt=g/v; so that we can put (20) Ai/ At.t = g/v, if v denotes the mean velocity during the small finite interval of time At, during which the direction of motion of the shot changes through Ai radians.

How would you define trajectory? Add your definition here.

comments powered by Disqus