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# 12. In a professional cycling race, competitors (the peloton) begin the race by riding 45.0 km north, then the road turns west by 37

## 12. In a professional cycling race, competitors (the "peloton") begin the race by riding 45.0 km north, then the road turns west by 37 for the next 50.0 km, before turning due west for the final 35.0 km. The average speed of this race is 42.8 km/h. (a) [3 marks] Draw a vector diagram describing their motion. (b) [2 marks] What is their total distance? (c) [4 marks] What is their displacement? (d) [2 marks] What is the duration of the race? (e) [3 marks] What is the average velocity of the riders? (f) [2 marks] If, after the race, the team buses can drive the riders back to the starting point on a straight line, in what direction would the bus head?

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