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Solve the following questions:

Question I: Calculate the retarding force due to the viscosity of the air layer between a cart and a level air track given the following information-air temperature is 20°C, the cart is moving at 0.360 m/s, its surface area is 2.50×10-2 m2, and the thickness of the air layer is 5.10×10^-5 m.

Question II: What is the ratio of this force to the weight of the 0.360-kg cart?

Please show me step by step or type in formulas used. I am so lost!!

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Category:- Physics
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