5 points The diagram shows a shuttlecock that is used for playing badminton. The
shuttlecock weighs very little. When you drop it
from a height of a few
metres, it accelerates at first but soon reaches a steady speed. Explain, as
fully as you can: A. why the shuttlecock accelerates at first (2 marks); and
B. why the shuttlecock reaches a steady speed (3marks)

Sorry i don’t know what to do

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero. 

Ansa new gas is observed in the form of bubbles;

Decrease the surface area of the object and also decrease the concentration which will allow the particles to collide faster