A 920-kg sports car collides into the rear end of a 2300-kg SUV stopped at a red light. The bumpers

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  • Опубликовано: 6 сен 2024
  • 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, estimating the coefficient of
    kinetic friction between tires and road to be 0.80, calculates
    the speed of the sports car at impact. What was that speed?

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