Physics, 25.03.2021 20:50 EssiePooh7649
A 990-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.7 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.
Answers: 3
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A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be β1,200 m/s.
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A 990-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light. The bumpers...
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