Question

A boat is traveling upstream at 14 km/h with respect to the water of a river. The water itself is flowing at 9 km/h with respect to the ground. What is the velocity of the boat with respect to the ground

Answer 1

16.64 km/h

Step-by-step explanation:

Think of the x and y components as the a and b sides of a triangle and simply do the Pythagorean Theorem:

`a^2+b^2=c^2`

`14^2+9^2=c^2`

`√(196+81)=c`

`√(277)=c`

`16.64 km/h`