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December 22, 2014

December 22, 2014

Posted by **ashley --** on Saturday, April 30, 2011 at 12:06am.

Choose one answer.

a. The observer and the object move with the same speed v in the same direction.

b. The observer and the object move with the same speed v in the opposite direction.

c. The observer and the object move with the same speed v in perpendicular directions.

d. The observer moves at an angle 30° to the direction of the object, but both move with the same speed.

- physics -
**drwls**, Saturday, April 30, 2011 at 5:46amCase (b), which has the highest relative velocity (2v), and the greatest relativistic length contraction.

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