(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

was a home work problem. im redoing it for practice

im stuck on part c

this is the hint for part C

2. Relevant equations

t=T/(1-(v/c)^{2})^{1/2}

3. The attempt at a solution

my attempt.

i know that from the restaurant to school it will take 15 min in school's frame and ice cream melts in 5min in the car riders frame..so i did

(15/60)=(5/60)*(1-(v/c)^{2})^{-1/2}

so i solved for v and got c=37.74. which was wrong, do not know where im going wrong.

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

Join Physics Forums Today!

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

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

# Time dilation and speed.

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