Question

A river flows due south at 1.2 mi/h. In what direction should the swimmer head, at a velocity of 2 mi/h, in order to arrive at a landing point due east of his starting point? (Round your answer to one decimal place.) in degrees

Answer 1

you can simply do it by finding the resultant that is 2.56

Answer 2

and now u can use tan for speed of river by resultant

Answer 3

and i think the answer is 51.3 E

Answer 4

nope thats wrong:/

Answer 5

o.8E

Answer 6

this diagram may help...

Answer 7

Refer to the attachment from Mathematica.