The wheel in the simplified engine of Figure P13.23 has radius A =0.250 m and rotates with angular frequency v =12.0 rad/s. At t=0, the piston is located at x=A. Calculate the piston’s
(a) position, (b) velocity, and (c) acceleration at t=1.15 s.​

Answer is in the file below

cutt.ly/zxt1ipy

im not to sure what it is

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