A gun of mass 5 kg fires a bullet of mass 0.02 kg . the bullet leaves the barrel of the rifle at a velocity 120 m /s . if the bullet takes 0.1 s to travel through the length of the barrel, calculate the force experienced by the rifle due to its recoil.
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m = mass of the bullet fired from gun = 0.02 kg
v₀ = initial velocity of the bullet from gun = 0 meter/second
v = final velocity of the bullet from gun = 120 meter/second
t = time taken to travel through barrel of gun = 0.1 s
a = acceleration of the bullet
Using the equation
a = (v - v₀)/t
a = (120 - 0)/0.1
a = 1200 m/s²
as per newton's second law , force is given as
F = ma
inserting the values
F = (0.02) (1200)
F = 24 N
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