A10 kg ball is traveling at the same speed as a 1 kg ball. compared to the 10 kg ball, the 1 kg ball has

1/100 the momentum
1/10 the momentum
the same momentum
ten times the momentum

A 10 kg ball is travelling at the same speed as a 1 kg ball. It has  1/10 the momentum when compared to the 10 kg ball

Option 2

Explanation:

If two objects travel with same speed, then the momentum can be calculated by the following,

Consider mass of 1 kg ball is

               for 10 kg ball as

Velocity is same for both so it is v

Momentum,

Then,

When substituting for v as , we get

From this, we know momentum of 1 kg ball is 1/10 times that of 10 kg ball.

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

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =