A boat travels due east at a speed 40ms-1s across a river flow due south at 30ms-1s. What is the resultant speed of the boat?

A.

1.3ms-1

B.

10.0ms-1

C.

50.0ms-1

D.

70.0ms-1

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

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