Calculate the acceleration of the system that the coefficient of kinetic friction is 0.38. predict which side of the ramp the system will move

The acceleration of the system is a = 0.38 g. And, the system will move in the direction of the applied force.

Explanation:

Given data,

The coefficient of the kinetic friction, μₓ = 0.38

Let the mass of the body be, m

Let the kinetic frictional acceleration be 'a'

The normal force acting  on the body W = mg

The kinetic frictional force of the body,

                         Fₓ = μₓ W

                          Fₓ = 0.38 mg

                           ma = 0.38 mg

                              a = 0.38 g

Hence, the acceleration of the system is a = 0.38 g. And, the system will move in the direction of the applied force.

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