Answer to Question #80539 in Physics for Nayeli

Question #80539

You walk 15 m north to your friend’s house, pick up your cell phone charger and walk to your other friend’s house which is 23 m south. What is your displacement?

Expert's answer

Take south as the positive direction. Then,
d=d_1+d_2
The displacement is
d=-15+23=8 m south.

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