1. The problem statement, all variables and given/known data A car takes a trip at 20m/s for a certain time interval. At any point in the trip (assuming it doesn't matter), the car takes a 10 minute break with no velocity. The average velocity for the trip is 15m/s The problem asks for the Total time and the distance travelled. 2. Relevant equations x=vt v(avg)=1/2(v+v_f) 3. The attempt at a solution I guess I'm just confused about the rules in using the average velocity equation. This problem should be easy it seems. I have worked it out and I don't have an answer on if what I did is right or not. This is what I did. T(total)=t(interval)+600(seconds) x=v*t x=v*(T-600(seconds)) x=20T-12000(meters) 2*V(avg)=v_o+v_f =(x_o+x_f)/T=2*X/T v(avg)=x/T Which makes me think this wasnt even necessisary since it is a general eq. Plugging in x into the last equation you get v(avg)*T = 20T-12000(m) 15*T=20T-12000(m) T=2400s Therefore x = 36000m If this is right I would be helpful to know. If not a hint on how to use that stupid average formula would be nice.