a bullet of mass 6g travelling at 126m/s^2 penetrates into a fixed target and is brought to rest in 0.01s.determine(a)the distance of penetration in the target
Physique/Chimie
einsteinjr59
Question
a bullet of mass 6g travelling at 126m/s^2 penetrates into a fixed target and is brought to rest in 0.01s.determine(a)the distance of penetration in the target (b) average regarding force exerted on a bullet
1 Réponse
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1. Réponse arianasarah
Hello
First thing we have to find a
a = v-u/0.01 = 126-0/0.01=12600m /s^2
And now s = u^2/2a = 126*126/2*12600=0.63m
F = ma = 0.006*12600=75.6N