(english) A reaction is a force exerted by a support on an object: sometimes called support reaction. Using this definition, a reaction is an external force.
ภาษาไทย
ภาษาอังกฤษ Reaction:
ภาพประกอบ (english) A reaction is a force exerted by a support on an object: sometimes called support reaction. Using this definition, a reaction is an external force.