A river flows due north with a speed of 2.00 m/s. A man rows a boat across the

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river; his velocity relative to? A river flows due north with a speed of 2.00 m/s. A man rows a boat across the river; his velocity relative to the water is 4.30 m/s due east. The river is 1000 m wide.

a) What is his speed relative to the earth? wrong check mark m/s
 
His speed is the resultant. 2 squared + 4.3 squared = r squared. Just take the square root of 2 squared + 4.3 squared and you should have it.
 
His speed is the resultant. 2 squared + 4.3 squared = r squared. Just take the square root of 2 squared + 4.3 squared and you should have it.
 
His speed is the resultant. 2 squared + 4.3 squared = r squared. Just take the square root of 2 squared + 4.3 squared and you should have it.
 
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