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# Sandra needs to deliver 20 cases of celery to the farmers' market directly east across the river , which is 32.0 m wide . Her boat can move at 2. 5...

Hey, I don't understand the following questions, can you help me understand what it wants me to do ? I don't get it at all, thank you !

30 . Sandra needs to deliver 20 cases of celery to the farmers' market directly east across the
river , which is 32.0 m wide . Her boat can move at 2. 5 km / h in still water . The river has
a current of 1 . 2 km / h flowing downstream , which happens to be moving in a southerly
direction .
determine her velocity relative to the shore*
determine how far she will have to walk to reach the farmers' market
show how Sandra could end up at her destination without walking ( include a
diagram and calculations )
Sandra can walk at 0 . 72 m/s when she is pulling her wagon loaded with 20 cases of
celery . ( She already has a wagon on board the boat , just in case she does not manage
to steer her boat directly to the opposite shore . ) Determine which route will result in
the shortest time for Sandra to reach her destination . Show your work .
( 11 marks )
Save your answers to the Key Questions in the online submission tool . You'll
be able to submit them when you've finished all of the Key Questions for this
unit . Now go on to Lesson 8!

She'll end up 15.36 meters south of the market her velocity relative to... View the full answer

( 1)
N
I've = 1 .2 ^ ^
V= = 0 . 69 4.4 N/}
VS = 2. 5laugh
5
* When she sets out east ward
U poss = 32 0 = 46.085
VS
32 m
during this 46.035
She is drifted by wave liver
46. 03 5 x 1 1} = 15. 36 m)...

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