Aforce exerted on an object produces acceleration. if the mass is reduced by one-third, the acceleration is increased by a factor of 1.)3 2.)1.5 3.)6

1.)3

Explanation:

As we know that force is the product of mass and acceleration

So it is given as

F = ma

now if a constant force is applied on an object of given mass then the product of mass and acceleration must remains constant

so here we can say that if the mass is reduced by one third

so we have

so here we have

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