PHYSICS QUESTION PLS HELP :( 20PTS?

This is our take home quiz and I already answered it but im not sure if im correct :( Can someone please solve this?

1. A man searching for his lost wallet walks 2.50m south, then goes 5.25 m at an angle 30.0° north of east. Find the man’s resultant displacement vector using component method.

2 Answers

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  • 3 years ago

    Impose a coordinate system with positive x-axis going east and positive y-axis going west.

    s = -2.50j + 5.25cos(30.0°)i + 5.25sin(30.0°)j

    = (4.547i + 0.125j) m

    Magnitude = sqrt(4.547^2 + 0.125^2) = 4.548 m = 4.55 m to 2 significant digits

    Direction = arctan(0.125 / 4.547) = 1.57° north of east

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  • ?
    Lv 6
    3 years ago

    Vx = 5.25 cos 30

    Vy = 5.25 sin 30 - 2.5

    Vx = 4.547

    Vy = 0.125

    R = 4.549

    < = 1.575 degrees

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