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This question was created from SPH3U Unit 2 Key Questions 100%.pdf


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?


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
(2.5km/h)2 + (1.2km/h)? = 2.77km/h
0 = tan
- 1
= 26
.. v = 2.77km/h(E26 ' S)

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2.5 km/hr
1.2 km/hr
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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