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Which of the following is NOT an example of friction as a helpful force?
A.Using your hand to wave hello to a friend

B.Using a cloth to clean a pair of glasses

C.Using a marker to draw a picture on paper

Respuesta :

baugosnowdot

Answer:

Using your hand to wave hello to a friend

Explanation:

The other two are helpful friction scenarios  while A. isn't applicable.

Hope it helps :) !!!

Anonymous123456677

Answer:

A.

Explanation:

By waving your hand you do not rub against anything else therefore friction is not possible.

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