Physics

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A boy walks 10 m due west and 10m due south.What is the displacement.[2]a girl walks 12m northwards,5m eastwards and 7m southwards.Calculate her total displacement[3]a man walks 5km south and 3km in the direction 60 degree west of south.Calculate his distance from starting point.

• Physics -

these all just use the Pythagorean Theorem, or the distance formula, which is the same.

Just figure out the final location, and then use the formula.

For #1,

(0,0) -> (-10,0) -> (-10,-10)
distance is √(10^2+10^2) = 14.1

• Physics -

Using Pythagoras theorem the answer is 14.1 for question 1

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