Question

A hot air balloon called Global Challenger was used
to try to break the record for travelling round the
world. The graph in Figure 29.8 shows how the
height of the balloon changed during the flight.
10000
B
8000-
6000-
neight (metres)
40004
2000-
30
012345
15 20 25
time after burners were lit (hours)
Figure 29.8
The balloon took off from Marrakesh one hour
after the burners were lit and climbed rapidly.
a Use the graph to find
(i) the maximum height reached,
(ii) the total time of the flight.
b Describe the vertical motion of the balloon
(1) just before point B on the graph,
(ii) immediately after point Con the graph.
c Several important moments during the flight are
labelled on the graph with the letters A, B, C, D,
E and F. At which of these moments did the
following happen?
(1) The balloon began a slow controlled descent
to 2500 metres.
(ii) The crew threw out all the cargo on board in
order to stop a very rapid descent.
(110) The balloon started to descend from 9000
metres.
gur
(NEAB Higher, June 98)​

Answer 1

Answer:

sorry I don't know the answer

Answer 2

Answer:

Sorry for this

Explanation:

I don't know the answer