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Q1. A banked circular highway curve is designed for traffic moving at 83.0 km/h. The radius of the curve is 159 m. Traffic is moving along highway at 48 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?

Q2. Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.

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