Physics, asked by kunwararmansinghbas, 2 days ago

a machine gun bullet of mass in leaves from barrel at speed of 100ms-1 and has kinetic energy of 100J.what is the mass of the bullet

Answers

Answered by shoham529

0

Answer:

Mass=0.2kg

Explanation:

KE of bullet (KE)=1000J

Speed of bullet (v)=100ms−1

Mass of bullet (m)=?

KE=12mv2

1000J=12×m(100ms−1)2

m=1000×2100×100=0.2kg

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