When a train is traveling along a straight trackPublished January 2, 2017 at dimensions 495 × 200 in When a train is traveling along a straight track. https://www.questionsolutions.com/wp-content/uploads/2017/01/tra1.pngImage from: R. Hibbeler, Engineering mechanics, 13th ed. Upper Saddle River, N.J.: Pearson, 2013.