Relative Speed and Frame of Reference
Name: Jane K.
When you are driving side by side with another car, why does the other car appear to
be not moving, even though it is moving with the same speed as your car?
It appears to be standing still because with respect to your frame of reference (your car) it is not
moving. This assumes that your car and the other one are not moving at, or near, the speed of light.
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Update: June 2012