what is the speed, define velocity, define scalar quantity, define vector quantity, what is the difference between speed and velocity, the relative speed increases when........................................., the relative speed decreases when................................., the relative speed equals zero when.................................., the relative speed equals the real speed when ........................, Average speed equals, the regular speed represents graphically by .........................., Acceleration equals zero when ............................

排行榜

隨機卡是一個開放式範本。它不會為排行榜生成分數。

視覺風格

選項

切換範本

恢復自動保存: ?