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An elevator cable breaks when a 975 kg elevator is 24.5 m above the top of a huge spring (k = 8.00 x 10^4 N/m) at the bottom of the shaft.
(a) Calculate the work done by gravity on the elevator before it hits the spring.
(b) Calculate the speed of the elevator just before striking the spring.
(c) Calculate the amount the spring compresses.
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In a historical movie, two knights on horseback start from rest 74 m apart and ride directly toward each other to do battle. How far from Sir George's starting point do the knights collide
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A bomber is flying horizontally over level terrain at a speed of 260 m/s relative to the ground and at an altitude of 2.60 km. At what angle from the vertical was the bombsight set
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