Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?
Anna is correct.
Anna is right as a satellite is in free fall because it keeps falling toward Earth, meaning that gravity is the only force acting on it. Tom is incorrect because an object does not have to accelerate at a certain speed to be considered to be in free fall. As long as gravity is the only force acting upon the object, it is considered to be in free fall.
none, its a machine
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