Travel Graphs Speed, distance, time Travel Graphs(1) 50 (a) Time of arrival at Bedford. 10:30 Calbridge 40 (b) Distance from Altown to Calbridge. 45 km 30 (c) How long at Calbridge? Distance (km) 30 mins Bedford 20 (d) Average speed: Altown to Calbridge. 45/ = 45 km/hr d S = /t = 1 10 (e) Average speed:return journey. 45/ = 90 km/hr d S = /t = ½ Altown 10.00 11.00 Time 12.00 Travel Graphs (2) 36 mins or 0.6 hr Canby 20 Distance (Miles) Bigby (b) How far is it from Bigby to Canby? 16 12 miles 12 (c) Average speed from Bigby to Canby? S = d/t = 12/0.4 = 30 mph 8 (d) Average speed on return journey? 4 Airby (a) How long at Bigby? S = d/t = 20/0.8 = 25 mph 0800 0900 Time 1000 1100 (e) Average speed for whole journey? S = d/t = 40/3 = 13 1/3 mph Travel Graphs (3) Burton 100 How can you tell from the graph that the journey between Cady and Burton was the slower of the 3 journeys? 80 Distance (km) 60 Cadby 40 20 Watton 0900 Line is less steep. 1000 Time 1100 1200 The graph shows part of a return car journey from Watton to Burton. The car arrived in Burton at 1030 and stopped for 18 minutes before returning to Watton, at an average speed of 100 km/hr. Complete the travel graph for this journey. Travel Graphs(1) 50 (a) Time of arrival at Bedford. Calbridge 40 (b) Distance from Altown to Calbridge. 30 (c) How long at Calbridge? Distance (km) Bedford 20 (d) Average speed: Altown to Calbridge. 10 (e) Average speed:return journey. Altown 10.00 11.00 Time 12.00 Travel Graphs (2) Canby 20 (a) How long at Bigby? (b) How far is it from Bigby to Canby? 16 Distance (Miles) Bigby (c) Average speed from Bigby to Canby? 12 8 (d) Average speed on return journey? 4 Airby 0800 0900 Time 1000 1100 (e) Average speed for whole journey?