2. Oscar walked to the milktea house for a snacks. He walk 2 kilometers east, 2 kilometers south, and 2 kilometers west. What distance did he
cover? What was the displacement?

the displacement was only 2 kilometers

His walks cover 2km+2km+2km = 6 km.

Explanation:

Let East be positive.  Since West is the opposite direction, it is negative.  His displacement is dependent on direction.  2km east + 2km west + 2km east = (2-2+2)km = 2km.  His displacement is 0 because he ends up back where he started.

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d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day