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Situation A
Situation B
Observation: It is easier to pull the load in Situation B than
the load in Situation A.
Inference: Because there is less friction in Situation A than
Situation B.
Situation A Situation B
oil water
wax grease
Making patterns on thesoles of the shoes.
Making patterns on the surface of the
tyre.
Using rough surfaces……
Carpet
anti-slip mat