Balanced: A phone sliding across a table at a constant speed, A football on the ground, A bike going at constant speed, A light hanging from the ceiling , A book sitting on a table, A picture hanging on a wall, A boy leaning on a wall, An owl sitting in a tree, An empty swing, Reading a book in bed, Unbalanced: A airplane taking off, Kicking a football, A car slowing down, Stretching a spring, Lion vs. kindergartener in tug of war , A cat shoving a glass off of the table, Pushing a car that ran out of gas to the parking lot, An owl landing in a tree, A swing moving back and forth, Waving a flag,

Balanced or Unbalanced forces?

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恢復自動保存: ?