monicacretu01 monicacretu01
  • 03-06-2019
  • Physics
contestada

Please help! Find the time. 8 POINTS!!

Please help Find the time 8 POINTS class=

Respuesta :

SilverChain SilverChain
  • 03-06-2019

Answer:

Time = 4.1 s

Explanation:

Momentum = mv = (12000)(4.25) = 51000 kg m/s

Momentum = Impulse (mv = ft) so

51000 = (9200)t

t = (51000)/(9200) = 5.54 seconds

Impulse of the current and the engine must equal so (ft = ft)

51000 = (12500)t

t = (51000)/(12500) = 4.08

But accounting for significant figures, time equals 4.1 seconds

Answer Link
jay2k19
jay2k19 jay2k19
  • 03-06-2019
The answer to your question is 4.1s
Answer Link

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