Sparta wanted to overthrow the Athenian oligarchy. Athens wanted to become the most powerful city-state in Greece. Sparta and its allies felt threatened by Athens's growing power.
The Athens wanted to become the most powerful place in greece and the Sparta and all its allies started to feel threatened by Athens growing power and growing naval base.
Thus question lacks a picture or option, but nevertheless:
Answer:
There are 3 types of friction:1) Static friction - when you apply force and the object does not move.2) Sliding friction - when the surface if the object moves on other.3) Rolling friction - when any wheel or ball moves on any surface rolling friction is applied. it is very less than sliding friction.
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