anonymous
  • anonymous
A shell of mass 0.020 kg is fired by a gun of mass 100kg .If the muzzle speed of the shell is 80 m/s, what is the recoil speed of the gun?
Physics
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
use momentum conservation total momentum of system b4 and after firing system=gun+bullet
Callisto
  • Callisto
@salini Is it like this? 0 = 0.02 (80) +100 (v) and solve for v?
anonymous
  • anonymous
yes u will get velocity of gun as -ve (opposite to bullets velocity direction)

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Callisto
  • Callisto
Yup!

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