9.2.5 Speed and Acceleration, PT3 Focus Practice

Question 11: Susan drives at an average speed of 105 km/h from town F to town G. The journey takes 3 hours. Susan takes 30 minutes longer for her return journey from town G to town F. Calculate the average speed, in km/h, for the return journey. Solution: Distance from F to G = 105 km/h×3 hours =315 km Average speed for return journey = distance travelled time taken … Read more