ï»¿ A man rows a boat with a speed of 18 km/hr in north-west direction. The shore line makes an angle of 15Â° south of west. Obtain the components of velocity of boat along shore line and perpendicular to shore line. from Physics Motion in A Plane Class 11 Manipur Board

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A man rows a boat with a speed of 18 km/hr in north-west direction. The shore line makes an angle of 15Â° south of west. Obtain the components of velocity of boat along shore line and perpendicular to shore line.

The velocity of boat is 18 km/hr in N-W direction and shore line makes angle 15Â° with S of W.

Therefore the velocity vector of boat subtends an angle of 60Â° with shore line.

Component of velocity of boat
along shore line =Â

And component of velocity of boatÂ perpendicular to shore lineÂ

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A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.Â

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A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
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