Question

If nothing is said about the nature of the friction then

Answer 1

Answer:

then? what's the remaining question

Answer 2

If there was no friction, then there would be nothing trying to stop the object from moving and thus, it would never come to a stop.

Explanation:

1. Friction is a force that opposes relative motion.
2. It is the resistance imparted by the surface on the object moving on it.

There are two types of friction:

1. Static friction — which works against the “tendency to move” as in a brick on a slight incline. It is thought to be due to the interlocking of surfaces (even to the molecular level as in glass on glass, etc.)
2. Kinetic (or rolling) friction — which works against actual motion. It is thought to be due to the actual interplay of surfaces.

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