Compute all parts of given problemproblem a river flows due, Ask an Expert

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Compute all parts of given problem:

Problem: A river flows due south with a speed of 1.0m/s . A man steers a motorboat across the river; his velocity relative to the water is 4.3m/s due east. The river is 770m wide.

Part I: What is the magnitude of his velocity relative to the earth?

Part II: What is the direction of his velocity relative to the earth?

Part III: How much time is required to cross the river?

Part IV: How far south of his starting point will he reach the opposite bank?

I need tutor help to solve the above problem and express your answer using two significant figures.

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