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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asked Feb 14, 2022 51.8k views

2 votes

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

Physics
college

Sidharth Mudgal asked

by Sidharth Mudgal

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1 Answer

5 votes

Answer:

C)12150J

Step-by-step explanation:

KE = (1/2)(m)(v²)

KE = .5*30g(1kg/1000g)*(900m/s)²

KE = 12,150J

Itamar Kanter answered Feb 18, 2022

by Itamar Kanter

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