A bullet of m=30g reaches 900m/s in a 550mm long gun barrel. What total energy does the bullet have upon exiting the gun? * A)12150000

Question

A bullet of m=30g reaches 900m/s in a 550mm long gun barrel. What total energy does the bullet have upon exiting the gun? *
A)12150000J
B)810000J
C)12150J
D)14850000J

show your work please

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3 years 2021-07-28T13:33:38+00:00 1 Answers 24 views 0

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    2021-07-28T13:35:20+00:00

    Answer:

    C)12150J

    Explanation:

    KE = (1/2)(m)(v²)

    KE = .5*30g(1kg/1000g)*(900m/s)²

    KE = 12,150J

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