Answer:
3 m/s²
Explanation:
acceleration = Force / mass; 4.5/1.5 = 3
Longitude lines because latitude lines are the ones that run east to west
As per initial given conditions first we will find the initial potential energy of the feather






now we know that few amount of its initial energy is lost in form of frictional energy loss
so remaining energy will be less than the initial potential energy
So final answer would be
<u><em>A. KE < 0.0196 J</em></u>
Answer:

Explanation:
The work done on a particle by external forces is defined as:

According to Newton's second law
. Thus:

Acceleration is defined as the derivative of the speed with respect to time:

Speed is defined as the derivative of the position with respect to time:

Kinetic energy is defined as
:
