Question

14. The diagram shows some people are waiting in a queue at a supermarket. 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 for
person X
person X
checkout
Distance (m)
8
7
6
5
4
3
2
1
0
1
6
7
8
2 3 4 5
Time (6)
What is the initial length of the queue?
a
b.
C.
b
Explain how you could use the graph to work out the number of times person X is
stationary
d.
V. Dif
ques
C
State the equation linking average speed, distance moved and time taken.
16.
Dist
d. calculate the average speed of person X in the queue. also, mention the units of each entity​

Answer 1

Answer:

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE.