____ is the rate of change of speed. It is measured in ____ per second per second (m/s2). A large acceleration means the object is changing speed ____. A ____ acceleration means that the speed is ____ and the object is ____ down.

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?