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.