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A projectile weighing 116 lbs strikes the concrete wall of a fort with an impact velocity of 1202 ft/s. The projectile comes to rest in

A projectile weighing 116 lbs strikes the concrete wall of a fort with an impact velocity of 1202 ft/s. The projectile comes to rest in 0.07 second having penetrated the 8-foot thick wall to a distance of 6 feet. What is the average force exerted on the wall by the projectile?

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