a) As given, small ball attain the terminal velocity, i.e highest velocity during falling
Therefore,Sum of drag force and buoyancy =downward force of gravity Fg
Hence the net force=0,
Acceleration, a=0
b) The net force acting on the object falling near the surface of earth
;----------------(i)
As terminal velocity is attained ,Hence put a=0 in above eq(i) we get:
;--------------(ii)
; neglecting buoyancy Force
c) Again from eq (ii)
;
; v=terminal velocity
;
A small ball has a mass of 2.3 g and a terminal speed of 9.0 m/s....
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