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Physics / Physics: Principles with Applications 6 / Chapter 7 / Problem 35P

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

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QUESTION:

Problem 35P

A 920-kg sports car collides into the rear end of a 2300-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.8 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, calculates the speed of the sports car at impact. What was that speed?

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QUESTION:

Problem 35P

A 920-kg sports car collides into the rear end of a 2300-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.8 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, calculates the speed of the sports car at impact. What was that speed?

ANSWER:

Step 1 of 3

Given,

Mass of the sport car, .

Mass of the SUV, .

The car skid forward to a distance, .

The coefficient of kinetic friction between tires and roads,

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