Remember the formulas for speed, time, and distance? Here they are again for your reference: Speed-Distance-Time Equation for Time: At = Ad/v At = Ad = v Speed-Distance-Time Equation for Distance: Ad = v . At or Ad = v x At Speed-Distance-Time Equation for Speed: v = Ad / At or v = Ad = At Be sure to include UNITS, and when applicable, DIRECTIONS Also. 1. John travels by train from New York to Washington at an average speed of 45 miles per hour in 5 hours. How many miles is the trip from New York to Washington? Solving for: Equation: Substitute (work): Answerw/ units: 2. Susan drives her car 130 miles in 2.5 hours. She stops for 30 minutes to buy gas and eat lunch, and then she drives another 150 miles in 3 hours. What is her average speed over the entire trip ( including her lunch stop? Solving for: Equation: Substitute (work): Answerw/ units:3. Steve rides his bicycle 1200 meters along a straight road to the east in 5 minutes. What is Steve's velocity? Solving for: Equation: Substitute (work): Answerw/ units: 4. Continuing from Problem #3, after Steve rides his bicycle along a straight road 1200 meters East in 5 minutes, he turns around and rides west 600 meters along the same road for 2 minutes. What is Steve's velocity on the second segment of his trip going west? Solving for: Equation: Substitute (work): Answerw/ units: 5. Continuing from Problem #4, what is Steve's displacement Ad on this entire trip? You should use the equation for displacement Ad = dfinal - dinial. You can plot it on the number line to help you figure it out. Direction: Distance: Displacement: Direction