A ball is hanging from a long string that is tied to the ceiling of a train car traveling eastward on horizontal tracks. An observer inside the train car sees the ball hang motionless.(adsbygoogle = window.adsbygoogle || []).push({});

Draw a clearly labeled free-body diagram for the ball if the train has a uniform velocity.

i drew two vectors, but it says i got it wrong. both of my vectors are equal in lenth and are 180 degrees apart.

here's my answer image: http://i53.tinypic.com/21et2za.jpg

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# Simple vector train problem drawing

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