An airplane takes 2 minutes to travel the short distance between airports on two islands. 3 The graph shows how the speed of the aeroplane changes as it

• Takes off
• flies across the sea
• lands on the other island.

When it flies across the sea it travels with a constant speed. Use the graph to answer the following questions.
a. Calculate the acceleration at the start of the journey.
b. Calculate the total distance that the aeroplane travels.