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; } 4. Find the instantaneous velocity of the particle described in Figure P2.1 at the following times: (a) t = 1.0 s, (b) t = 3.0 s, (c) t = 4.5 s, and (d) t = 7.5 s. Hint overline(v) = (∆x)/(∆t) Answer (a) 5m//s (b) -2.5 m//s (c) 0m//s (d) 5m//s Show Steps (a) constant velocity form t =0 to t=2 Instantaneous velocity v(1.0) = overline(v(0,2)) = (10m-0m)/(2s-0s) = color(red)(5 m//s) (b) constant velocity form t =2 to t=4 Instantaneous velocity v(3.0) = overline(v(2,4)) = (5m-10m)/(4s-2s) = color(red)(-2.5 m//s) (c) constant velocity form t =4 to t=5 Instantaneous velocity v(4.5) = overline(v(4,5)) = (5m-5m)/(5s-4s) = color(red)(0 m//s) (d) constant velocity form t =7 to t=8 Instantaneous velocity v(7.5) = overline(v(7,8)) = (0m-(-5m))/(8s-7s) = color(red)(5 m//s)