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Unformatted text preview: frictionless and point B is at the bottom of a circular arc of radius 75.0 meters. Answer: v = 21.4 m/s 20 o spring M cord horizontal v A B 1 2 .0 m 4.0 0 m 1 0 m 75 m horizontal 3. A 175-kg burrowing bomb is dropped from rest (from a hovering helicopter) from an altitude of 256 meters straight down to the ground. Air drag is negligible. The bomb penetrates 7.50 meters into the ground before stopping (It then is supposed to explode.). What average force did the ground exert on the bomb while it was burrowing? Answer: 6.03x10 4 N...
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