Question

A ball is allowed to roll down an inclined wooden plane from a given height.
examples.
2.
At the foot of the inclined plane, it moves on a horizontal surface, differently
'covered', one by one, as shown in the following figures.
h
h
Inclined
plane
Inclined
plane
Inclined
plane
Newspaper
Woollen
cloth
Plane glass
sheet
CASE 'B'
CASE 'C'
CASE 'A'​

Answer 1

Answer:

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