A bullet of mass 50g is fired from a gun of mass of 6kg with a velocity of 400m/s calculate the recoil velocity of the gun
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Momentum is conserved.
Momentum before firing is 0
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Mass of bullet = 0.05kg
v¹= 400m/a
mass of gun = 6kg
v²=0
by linear momentum
p¹= m¹v¹+m²v²
= 0.05×400+6×0
= 20
p²= m²v²
= 6v
p¹=p²
20 =6v
v=20/ 6
v= 3.3 m/s
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