s_(v_i )是以v_i为半径的运动面积，s_(v_(i+1) )

s_(v_i) is the motion area with v_i as the radius, s_(v_(i+1)) is the motion area with v_(i+1) as the radius, where Sv1v0 is the initial speed v0 and unspeed v1 per unit time It is the elliptical motion area of ​​the short and long semi-axes. In a linear uniform acceleration motion, when the acceleration a is determined, the amount of change in vi+1 and vi does not have a fixed coordinate axis, or the coordinate axis changes with movement, then Sv1+Sv0-2Sv1v0 is determined.

s_ (v_i) is a moving area with a radius of v_i, s_ (v_ (i-1) is a moving area with a radius of v_ (i-1), where in which Sv1v0 is a short, long half-axis elliptical moving area with the initial speed of the unit time v0 and the unvelove v1 as the short, long half-axis. In the linear uniform acceleration motion, when the acceleration a determines, the amount of change of vi1, vi, and there is no fixed axes, or the axes are changed with the movement then Sv1 sv0-2Sv1v0 is OK.

S_ (v_ I) with V_ I i s the moving area of the radius, s_ (v_ (I + 1)) with V_ (I + 1) is the moving area of radius, where sv1v0 is the elliptical moving area with the initial velocity V0 and the non velocity V1 in unit time as the short and long semi axis. In the linear uniform acceleration movement, when the acceleration a is determined, the change of VI + 1 and VI has no fixed coordinate axis, or the coordinate axis changes with the movement, then sv1 + sv0-2sv1v0 is determined.<br>