Homework Help: Physics

Posted by Laurie on Tuesday, October 23, 2012 at 10:24am.

If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length?

The length of the rod will become exactly half of its original value.

The length of the rod remains the same.

The length of the rod will decrease.

The length of the rod will increase.

I would think D

Physics - Elena, Tuesday, October 23, 2012 at 10:35am
L=L₀•sqrt{1-(v/c)²}=0.866L₀
The length of the rod will decrease.

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