DETERMINING SPEED FROM A GRAPH

When doing speed calculations, you may be finding the speed at a specific point in time or calculating the average speed for a period of time. For average speed, you will determine the TOTAL distance traveled and divide it by the time it took to travel that total distance. Other times you may be asked to just calculate speed by looking at a specific time and identifying the distance traveled at that time and divide the distance by time. Every morning Tom walks along a straight road from his home to a bus stop, a distance of 160 meters. The graph shows his journey on one particular day.What is Tom’s average speed from 0 seconds to 50 seconds? 1 m 2 m 3 m 4 m What is Tom’s average speed from 70 to 100 seconds? 1 m 2 m 3 m 4 m Which statement matches what Tom did at 50 seconds? continued walking toward the bus stop started walking back home because he forgot something walked past the bus stop left his home to walk to the bus stop At what time did Tom reach the bus stop located 160 meters from his home? 0 seconds 50 seconds 70 seconds 100 seconds 120 seconds During what time interval on the graph was Tom at rest? 0-50 s 50-70 s 70-100 s 100-120 s he was never not moving During what time interval on the graph was Tom moving the fastest? 0-50 s 50-70 s 70-100 s 100-120 s What is Tom's total distancehe traveled on his journey to the bus stop?(Remember to add up the total distance traveled for each segment.) 100 m 160 m 280 m What was Tom's average speed to reach the bus stop? 1.33 m 1.6 m 2.5 m 2.8 m WHO WON THE RACE? Runner A Runner B Runner C What was the approximate average speed for runner C for the first six seconds of the race? You may use a calculator. Approximately how long did Runner C stop during his race? 10 seconds 6 seconds 5 seconds 4 seconds What was the average speed for Runner A? What was the average speed for Runner B?