Physics. Concepts and Connections [textbook] by Igor; Heimbecker, Brian Nowikow

By Igor; Heimbecker, Brian Nowikow

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Compare data between two areas, such as Sweden (where studded winter tires are commonplace) and Ontario (where studded tires are illegal). Determine the societal cost of damaged roads caused by studded tires. Do the benefits of using studded tires outweigh the cost? 1 A Michelin X One all-season radial tire Design an Ac tivity to Evaluate Photograph ten different types of tire treads found on cars in your school parking lot or a local tire store. Photograph as broad a selection of tire treads as possible, such as all-season radials, winter tires, and, if possible, studded tires.

As a result, automobile tires are designed with treads that pump the water away from the road, thereby increasing traction. Studies have shown that in snowy or icy conditions, all-season radial tires provide less traction than winter tires and studded tires. Good tire maintenance is important regardless of tire type or make. Tire pressure must be maintained at the recommended level if the tire treads are to make contact with the driving surface in a way that ensures maximum surface contact. If tires are allowed to wear excessively, insufficient tread depth will prevent tires from channeling water away from the road surface, which decreases the coefficient of static friction and makes maneuvering the car more difficult.

22d), the slope of its tangent at any given point is the instantaneous acceleration of the object. 22d ៬v (m/s) The slope of a straight-line velocity–time graph is the constant acceleration of the object. What can we learn by finding the area under a velocity–time graph? 5 s? 23 is a linear, increasing velocity–time graph. 5 s)(14 m/s) A ϭ 24 m The unit generated in this example is metres; therefore, we can conclude that: ៮៬. The area under a velocity–time graph is the displacement of the object, ⌬d Similarily, The area under an acceleration–time graph is the change in velocity of the object, ⌬v៮៬.

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