Bullet and chair impulse problem

[Chumbaky]

There is a weapon in which the barrel length is 62 cm and has a muzzle velocity of 450 m / s. A 30 kg wooden chair rests on a wooden floor, the mass of the bullet is 10 g. A bullet penetrates the chair and the bullet lodges in the chair 4 centimeters. How far back, in centimeters, did the chair fly back?

 

[berkeman]

There is a weapon in which the barrel length is 62 cm and has a muzzle velocity of 450 m / s. A 30 kg wooden chair rests on a wooden floor, the mass of the bullet is 10 g. A bullet penetrates the chair and the bullet lodges in the chair 4 centimeters. How far back, in centimeters, did the chair fly back?

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