Question

14. The diagram shows some people are waiting in a queue at a superinarket. The queue moves
forward each time a person leaves the checkout
. Person X spends seven minutes in the
queue before reaching the checkout. The graph shows how distance changes with time
person X
checkout
person X

a.
What is the initial length of the queue?
b.
Explain how you could use the graph to work out the number of times person X is
stationary
C.State the equation linking average speed, distance moved and time taken.​

Answer 1

Explanation:

a) the initial length of the queue is one metre.

b) you can use the graph to work out the number of times the person X is stationary is the difference between the times

c ) distance is equal to speed into time