A 0.50 m long, uniform cylinder with a mass of 0.75 kg and radius 0.10 m is on a frictionless axle. A light cord wrapped around its center runs over a pulley to a 1.40 kg hanging mass below.
The pulley is also on a frictionless axle and is a disc which has a mass of 0.20 kg and radius 0.05
m. If the system was held at rest and then released, how fast is the hanging mass moving after it
has fallen a total distance of 0.50 m? (Assume that the cord does not slip on either surface and is
always tight.)

a. is the answer because they are not shared

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