At what speed will a projectile flying out of an artillery gun on Earth at a speed of 900 m / s fly out of it on the Moon

At what speed will a projectile flying out of an artillery gun on Earth at a speed of 900 m / s fly out of it on the Moon, where all bodies weigh 6 times less than on Earth?

At the same speed, because the mass of the projectile on the Moon has not changed (only its weight has changed).

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