Questions
A car travels 6 km towards north at an angle of 45o to the east and then travels distance of 4 km towards north at an angle of 135o to the east. How far is the point from the
starting point? What angle does the straight line joining its initial and final position makes with the east?
detailed solution
Correct option is C
Net movement along x-directionSx=(6−4)cos45∘i^=2×12=2kmNet movement along y-directionSy=(6+4)sin45∘j^=10×12=52kmNet movement from starting point|S→|=Sx2+Sy2=(2)2+(52)2=52kmAngle which makes with the east directiontanθ=y -component x -component =522∴θ=tan−1(5)Similar Questions
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