physics

the speed of a bullet of mass is 40gram is 216km/h what is the kinetic energy in joule

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1. V = 216,000m/h * (1h/3600/s) = 60m/s.

mass = 40g / 1000g/kg = 0.04kg.

KE=0.5mV^2=0.5 * 0.04 * 60^2=72 Joules.

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posted by Henry
2. 60×72×4=16800

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3. K.E

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posted by MUSA

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