Question text
9 An object is dropped at time t = 0 from a high building. Air resistance is significant. Three graphs are plotted against time: (cid:120) the height of the object above the ground (cid:120) the speed of the object (cid:120) the magnitude of the resultant force on the object. X 0 0 time Y 0 0 time Z 0 0 time What are the quantities X, Y and Z? magnitude of the height of the object speed of the object resultant force on above the ground the object A X Y Z B X Z Y C Y Z X D Z Y X
9 An object is dropped at time t = 0 from a high building. Air resistance is significant.
Three graphs are plotted against time:
(cid:120) the height of the object above the ground
(cid:120) the speed of the object
(cid:120) the magnitude of the resultant force on the object.
X
0
0 time
Y
0
0 time
Z
0
0 time
What are the quantities X, Y and Z?
magnitude of the
height of the object
speed of the object resultant force on
above the ground
the object
A X Y Z
B X Z Y
C Y Z X
D Z Y X
Select your answer: