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Find average friction force that would …

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Find average friction force that would stop a car of mass 500kg ina distance of 25 m. If the initial speed is 72km/h?
  • 1 answers

Abhishek Tiwari 6 years, 1 month ago

U=72*5/18=20m/s. S=ut+1/2at² V=u+at 0=20+at at=-20 25=20t-10t t=2.5 at=-20 a=-20/2.5 a=-8 Friction force= 500*8=-4000 N
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