Required information Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at 1.70 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head upstream at an angle of 25.0 from the direction straight across the river. In order to go straight across, what angle upstream should she have headed?
Required information Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at 1.70 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head upstream at an angle of 25.0 from the direction straight across the river. In order to go straight across, what angle upstream should she have headed?
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Transcribed Image Text:Required information
Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at
1.70 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head upstream at an angle of
25.0 from the direction straight across the river.
In order to go straight across, what angle upstream should she have headed?
Transcribed Image Text:Required information
Sheena can row a boat at 3.10 mi/h in still water. She needs to cross a river that is 1.20 mi wide with a current flowing at
1.70 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head upstream at an angle of
25.0° from the direction straight across the river.
How far upstream or downstream from her starting point will she reach the opposite bank? If upstream, enter a positive value and if
downstream, enter a negative value.
mi
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