"Spiderman is swinging from skyscrapers. He swings north 11 km, chasing down the Green Goblin. He then swings south 7 km to get a hot dog. After that, he swings 15 km to go to school. Finally, at the end of the day, he swings back home south 6.5 km to his apartment. He did this all in 8 hours A. What is Spiderman's average velocity?
B. What is Spiderman's average speed?

Please at least give me help with how to calculate this. Don't waste your time doing the actual problem. I just need the method of solving it.

ion like spideman A

Explanation:

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