Question

Question A machine gun bullet of mass m leaves the barrel at a speed of 100 ms-1 and has a kinetic energy of 100 J. What is mass of the bullet ?​

Answer 1

Answer:

1

__mv^2=1000

2

v^2=100ms^-1

1000×2

m=_______

100×100

m=0.21g

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Answer 2

Answer:

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