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This question was created from SPH3U Unit 2 Key Questions 100%.pdf https://www.coursehero.com/file/38147790/SPH3U-Unit-2-Key-Questions-100pdf/

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With the current pushing boat south, wouldn't the boat be moving southeast and would be our hypotenuse instead of the value which is only south? So we would use c^2-a^2=b^2?

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30.
Sandra needs to deliver 20 cases of celery to the farmer's 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. (11 marks)
determine her velocity relative to the shore
=
V
(2.5km/h)2 + (1.2km/h)? = 2.77km/h
0 = tan
- 1
1.2km/h
2.5km/h
= 26
.. v = 2.77km/h(E26 ' S)

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IMG_2564.jpg

-32m-
2.5 km/hr
market
1.2 km/hr
Resultant
Velocity
I think the problem asks us to assume that in still water,
the boat moves Eastward at 2.5 km/hr, and we are to
solve what the speed ( and...

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