peytonjensen17 peytonjensen17

25-04-2022
Physics

contestada

The spring of a dart gun exerts a force on a 0.02 kg dart as it is launched from the gun with 4.00 J of KE. At what velocity does the dart come out of the gun?

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Аноним Аноним

28-04-2022

Let's see

KE=1/2mv²

m is mass and v is velocity

2KE=mv²
4(2)=0.02v²
8=2v²/100
2v²=800
v²=400
v=20m/s

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