One of the basic relationships in the study of motion is distance = rate * time. I his 15 abbreviated as d = rt. In this formula, the rate is the same as velocity. Because most motion problems involve velocity that changes frequently, the rate in the formula is usually average velocity. If the rate stays the same, then the variables are d (distance) and + (time). Answer the following questions about d =rt. Make sure to use the correct units in your answers. 6. Suppose you are traveling along a long interstate highway where you can set the cruise control of your vehicle and maintain the same velocity for a long distance. If you set the cruise control at 70 miles per hour (mph), how far would you travel in: a. 2 hours? Show your work below: b. 4 hours and 30 minutes