On a straight stretch track a toy car is set rolling with an initial position of 16.0 cm, an initial velocity of-3.1 cm/s, and a constant acceleration of 2.10 cm/s2. at the same moment, another toy car is set rollingon an adjacent track with an initial position of 11.5 cm, an initial velocity of 5.40 cm/s, and a constantzero acceleration. a.at what time, if any, do the two cars have equal speeds? b. what are their speeds at that time? c. at what time(s), if any, do the cars pass each other? d. what are their locations at that time?

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

answer; how far out of place which the object finished relative to the starting location;

d. platinum would have the greatest temperature increase because it has the lowest specific heat.