An air-hockey puck has a mass of 50 g and is 9 cm in diameter.When placed on the air table, a 20 °C air film, of0.12-mm thickness, forms under the puck. The puck isstruck with an initial velocity of 10 m/s. Assuming a linearvelocity distribution in the air film, how long will it takethe puck to ( a ) slow down to 1 m/s and ( b ) stop completely?Also, ( c ) how far along this extremely long table will thepuck have traveled for condition ( a )?

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.