Plz i need this is due in 45 mins ty

Figure 1

Speed is a scalar quantity, It has only magnitude but no direction. It is defined as rate of change of distance.

Mathematically,    speed = distance÷time

                                     S = d ÷ t

                                      S = 2560 ÷ 60

                                      S =  42.67 m/s.

Bits:

Speed is a scalar quantity, that describes only the magnitude (42.67 m/s) of the rate of change of an objects distance. Determine the objects speed requires a unit of distance per unit of time

Figure 2

Velocity is a vector quantity, It has both magnitude and direction. It is defined as rate of change of displacement.

Mathematically, Velocity = Displacement ÷  time

                                     V =  75 ÷ 1.5

                                     V = 50 Km/h.

Velocity is a Vector quantity that describes both the magnitude and direction  of the rate of change of objects displacement plus it describes its position. An objects overall change in position is known as  its Displacement  per unit time.

atomic = no of protons.

mass number-atomic number = neutron number

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