From a rifle of mass of 5 Kg, a bullet of mass 100g is fired with initial
velocity 50m/s. Calculate the initial recoil velocity of rifle?
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From a rifle of mass of 5 Kg, a bullet of mass 100g is fired with initial
velocity 50m/s. Calculate the initial recoil velocity of rifle?
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Answer:
given... mass of bullet m1.. 100 g... 1 kg
... mass of rifle m2.... 5 kg
.. initial velocity of bullet u1... 0
... initial velocity of rifle u2... 0
... final velocity... v1.... 50 m/s
let v2 be recoil velocity of rifle
Step-by-step explanation:
then by law of conservation of momentum
m1u1 +m2u2=m1v1+m2v2
OR
v2=-m1v1/m2
=-1×50/5
v2=10m/s
hope it helps