I have the attached equation(adsbygoogle = window.adsbygoogle || []).push({});

but when I plug it, I dont get the same answer as in the back of the book...

Here is the question

Two observers, A on earth, B in a spacecraft whose speed is 2.0X10^8 m/s both set their watches to the same time, when the ship is abreast the earth.

How much time must elapse by A's reckoning before the watches differ by 1.00 seconds?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Time dilation equation help

**Physics Forums | Science Articles, Homework Help, Discussion**