Suppose you were waiting on a straight line, flat highway for a bus ride. Your f

Question

Suppose you were waiting on a straight line, flat highway for a bus ride. Your friend, already on the bus, "called you on yo' cell phone," and told you where the bus was located on this road. You said, "OK", and started the timer on your cellphone at that moment, because you now knew exactly how far away the bus was from. you right then. The bus driver was running behind schedule, so she accelerated to maximum and maintained that acceleration until she reached you. You looked at the time on you cellphone when the bus arrived to you. From the trip guide in your wallet, you read what the maximum acceleration for thought to yourself, "hey the bus made good time, I won't be late to Dr. Jackson's class." that bus was. You Using the table below: 1. Identify what variables are known and what variables are unknown in this story (write each of them in the appropriate boxes below). Known: Unknown: Select and write down the equation which you can use to find the velocity of the bus time when your friend called you. 2. 3. Solve this equation to find this velocity. Variables Equations For ax contant; and to = 0) | | luxo X0 ax t

Explanation / Answer

Sol1. Known: acceleration a, time t, displacement s,

Unknown: initial velocity u,

Sol2. s=ut+ 0.5*a*t2

Sol3. u=(s-0.5*at2)/t

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