anonymous
  • anonymous
suppose a bike and rider weigh 100kg. bike is accelerated at rest to 20km/h in 10 seconds, what is the acceleration? show the force required is approximately 55.5N
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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Callisto
  • Callisto
20km/h = 20x1000/(60x60) = 5.5556 ms^-1 acceleration = (v-u)/t = (5.5556-0)/10 = 0.55556ms^-2 By Newton's 2nd law ΣF =ma = 100x0.55556 = 55.6N ( difference is due to the way you round the number) Got it?
anonymous
  • anonymous
ah right, i didn't remember that a=(v-u)/t thanks yeah, i got that ") now on to the next section:)

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