An Airplane Undergoes the Following Displacements: First,it Flies 66 Km

question 39

Multiple Choice

An airplane undergoes the following displacements: First,it flies 66 km in a direction 30° east of north.Next,it flies 49 km due south.Finally,it flies 100 km 30° north of west.Using vector components,determine how far the airplane ends up from its starting point.

• A) 79 km
• B) 81 km
• C) 82 km
• D) 78 km
• E) 76 km

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A communication theory suggesting that exposing people to a weakened form of an argument can help them resist persuasion by stronger, opposing arguments.

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