A man rows a boat with a speed of 18 km/hr in northwest direction. The shoreline makes an angle of 15° south of west. Obtain the component of the velocity of the boat along the shoreline.

(A)  9 km/hr

(B)  1832 km/hr

(C)  18 cos 15° km/hr

(D)  18 cos 75° km/hr

Concept Videos :-

#23 | Vectors : Resolution 2D
#24 | Vectors: Resolution 3D

Concept Questions :-

Resolution of vectors

(A)

 

                         

                       

Component of velocity along Shoreline= Vman cos 60°                                                                    = 18 × 12                                                                    = 9 km/hr

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