Asled is pulled up to the top of a hill. at thetop of the hill the sled is released from rest and allowed to coastdown the hill. at the bottom of the hill the sled has a speedv and a kinetic energy e ( the energy due to the sled'smotion).the sled is pulled up a steeper hill ofthe same height as the hill described above. howe will thevelocity of the sled at the bottom of the hill (after it has sliddown) compare to that of the sled at the bottom of the originalhill? a. the speed at the bottom is greater for the steeperhillb. the speed at the bottom is the same for both hills. c. the speed at the bottom is greater for the orignal hillbecause the sled travels further. d. there is not enough information given to say which speed atthe bottom is fastere. none of the above

a.) the speed at the bottom is greater for the steeperhill

Explanation:

since the energy at the bottom of the steeper hilis greater

As we can see from above that v is higher when h ishigher.

it may be wrong but i think its a

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