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Answer 1

Answer:

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• Rubber soles are durable, provide cushion for your feet, and help to insulate you feet from high or low temperatures. Unfortunately, rubber soles can also become slippery on wet, icy or polished surfaces, leading to dangerous slips and falls.

• Yes, rolling friction. If an air cushion is introduced between the wheel and the rails, the friction will decrease.Three types of frictions can be observed between the train and the iron rails.

Rolling Friction- Rolling friction is when the train is moving on the iron rails.

Kinetic Friction-When the brakes are applied, the friction present in between trail and iron rails is kinetic friction

Static Friction-When the train is at rest

• Cartilage is a tender tissue present in our body which binds many body parts together.

The improper functioning of cartilage leads to the damage of the body structures.

The wearing of the cartilage is occurred due to injuries or traumas in sportspersons. The damage to the cartilage also causes pain while moving the joints.

Answer 2

Answer:

PLS MARK AS BRAINLIEST

Rubber soles are durable, provide cushion for your feet, and help to insulate you feet from high or low temperatures. Unfortunately, rubber soles can also become slippery on wet, icy or polished surfaces, leading to dangerous slips and falls.

Yes, rolling friction. If an air cushion is introduced between the wheel and the rails, the friction will decrease.Three types of frictions can be observed between the train and the iron rails.

Rolling Friction- Rolling friction is when the train is moving on the iron rails.

Kinetic Friction-When the brakes are applied, the friction present in between trail and iron rails is kinetic friction

Static Friction-When the train is at rest

Cartilage is a tender tissue present in our body which binds many body parts together.

The improper functioning of cartilage leads to the damage of the body structures.

The wearing of the cartilage is occurred due to injuries or traumas in sportspersons. The damage to the cartilage also causes pain while moving the joints.

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