A drone starts from point and flies due north at a steady speed of to reach point
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A drone starts from point A and flies 1200m due north at a steady speed of 5m s−1 to reach point B. It immediately turns back and flies 600m toward point A at a speed of 10m s−1 to reach point C. It then hovers at point C for 30s before its motors are switched off.
(a) Calculate the total time taken from the start at A until the motors are switched off.
(b) Find the total distance travelled by the drone during this period.
(c) Determine the displacement (magnitude and direction) of the drone from point A to point C.
(d) Using your results, compute (i) the average speed and (ii) the average velocity of the drone for the complete motion described.