Recent content by D3mon

Thanks guys I found my mistake It was I kept finding the acceleration in m/s and never changed the final velocity from k/h to m/s The answer was 745.13 seconds

Homework Statement A freight train has a mass of 2.8 × 10^7 kg. If the locomotive can exert a constant pull of 8.1 × 10^5 N, how long would it take to increase the speed of the train from rest to 77.6 km/h? (Disregard friction.) Answer in units of s. Homework Equations F=maThe Attempt at a...

What physics phenomena is being demonstrated in this picture? http://teachers.dadeschools.net/jkaelin/images/extra_credit2.jpg