You are driving north on a highway. then, without changing speed, you round a curve and drive east. does your velocity change? do you accelerate? explain.

Explanation:

In this case, the driver is driving towards north on a highway. The driver doesn't changes speed, rounds a curve and drive east. We know that, speed is a scalar quantity and velocity is a vector quantity.

The driver is changing the direction of motion, so its velocity changes. On the curve, the driver will have centripetal acceleration. As we know that the change in velocity per unit time is called acceleration.

Hence, this is the required solution.

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

there are no contact forces mentioned on the list of choices that you've provided.