A design team wants to determine the average speed of an autonomous delivery rover as it travels along a straight 60-metre test track inside a warehouse.
a.[2]
Describe how the team can take the necessary measurements to calculate this average speed.
b.[2]
The design team also monitors the performance of two prototype delivery rovers, X and Y, as they accelerate from rest along a level surface. The velocity–time graph below displays the results of their acceleration tests.
Which rover, X or Y, has the greater acceleration? Explain your answer.
c.[2]
Use the graph to calculate the acceleration of rover Y during the test.
d.[1]
Both rovers have the same mass. Suggest why it takes different amounts of time for them to reach their top speed.