Menu div.question,div.steps {font-size: 16px; padding: 10px;line-height: 20px; margin: 20px;} div.question{border: 1px solid #ccc;} div#solution .button{font-size: 20px; margin: 20px; width: 200px; padding: 10px; text-align: center;} div.hint,div.answer,div.steps{display: none;} div.pre_next{font-size: 30px; width:90%; margin:auto;} div.pre_next a.nav_pre{float:left;} div.pre_next a.nav_next{float:right;} div.title div.notes{ font-family:sans-serif, Arial; font-size: 18px; } 1. The position versus time for a certain particle moving along the x axis is shown in Figure P2.1. Find the average velocity in the time intervals (a) 0 to 2s, (b) 0 to 4s, (c) 2s to 4s, (d) 4s to 7s, (e) 0 to 8s. Hint average velocity: V_a = (∆x)/(∆t) Answer (a) 5.0 m//s (a) 1.3 m//s (a) -2.5 m//s (a) -3.3 m//s (a) 0 m//s Show Steps Known: V_a = (∆x)/(∆t) (a) x: 0m to 10m and t: 0s to 2s V_a = (10m-0m)/(2s-0s) = 5.0 m//s  (b) x: 0m to 5m and t: 0s to 4s V_a = (5m-0m)/(4s-0s) = 1.3 m//s  (c) x: 10m to 5m and t: 2s to 4s V_a = (5m-10m)/(4s-2s) = -2.5 m//s  (d) x: 5m to -5m and t: 4s to 7s V_a = (-5m-5m)/(7s-4s) = -3.3 m//s  (a) x: 0m to 0m and t: 0s to 8s V_a = (0m-0m)/(8s-0s) = 0 m//s