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

An observer measures the length of an object. In which of the following cases is the measured length at a minimum?

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.

## Answer this Question

## Related Questions

- college physics - Which of the following statements about special relativity is ...
- physics - If an observer is traveling parallel to a rod at twice the speed of ...
- physics - If an observer is traveling parallel to a rod at twice the speed of ...
- physics - A box is cubical with sides of proper lengths L1=L2=L3=2.0m when ...
- College Physics 2 - An unstable particle called Bullroarium has a lifetime of ...
- physics - If a rod is moving at a velocity equal to 1/2 the speed of light ...
- physics - A woman is 1.6 m tall and has a mass of 47 kg. She moves past an ...
- PHYSICS - A woman is 1.6 m tall and has a mass of 47 kg. She moves past an ...
- Physics - A woman is 1.6 m tall and has a mass of 53 kg. She moves past an ...
- Physics - a siren has a frequency of 1099 Hz when it and an observer are both at...