An autonomous delivery drone is cruising horizontally in a straight line at a constant speed of 18 m/s. When its optical sensors identify an unexpected obstacle, there is a processing delay before the drone initiates deceleration. During this processing time, the drone travels a distance of 6.2 m.
Calculate the drone's processing delay.
Give your answer to 2 significant figures.
39 exam-style questions on Edexcel GCSE Physics 2.5 Stopping and braking distances, covering 2.5.1 Stopping distance and reaction time, 2.5.2 Factors affecting stopping distance, 2.5.3 Dangers of large decelerations, and 2.5.4 Braking distance and initial speed. Each one has a worked solution and a mark scheme showing where the marks go.