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   ocr: Moving through water Boats are pushed through the water in many different ways. Small boats can be moved forward by rowing. REACTION FORCE ACTION FORCEI A rower: pulls oars backward through the water. The oars exert a force on the water called an action force. As they do this, the water creates a reaction force that moves the boat forward. The action and reaction forces are equal in strength but act in opposite directions. L a la 200 TU EE - E L E : = BE - 1 REACTION FORCE ACTION FORCE Instead of oars, a boat can have an engine that drives a propeller. The propeller works in the same way as th ...