A scooter travels along a straight road in three stages: • Stage I: It moves 6 km at…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A scooter travels along a straight road in three stages:
• Stage I: It moves 6 km at a constant speed of 30 km h−1.
• Stage II: It is stationary at a traffic signal for 2 min.
• Stage III: It then covers a further 4 km in the same direction at a constant speed of 36 km h−1.
(a) Determine the time taken in Stage I and in Stage III.
(b) Calculate the total time for the whole journey, including the stop.
(c) Find the average speed for the complete journey.
(d) Find the magnitude and direction of the average velocity for the complete journey.