The sider block moves with a velocity of r., 1.5 m/s and an acceleratim of α. 0.9 m/s 13 m/s. determine the npvlar sceternien of rod at and the acceterasion of a at the instant shown -15 ms 与“09 m/? at a gives instant, the gear has the srgalar mocon shows, duteheactions of points a and 8 on the link and the inksargular accelerarion at this itant

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

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