HW12 - Version PREVIEW – HW12 – Ross –(15200 1 This...

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Unformatted text preview: Version PREVIEW – HW12 – Ross – (15200) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. Block Jump Spring 01 001 (part 1 of 3) 10.0 points A block is pushed against the spring with spring constant 11 kN / m (located on the left- hand side of the track) and compresses the spring a distance 5 . 2 cm from its equilibrium position (as shown in the figure below). The block starts at rest, is accelerated by the compressed spring, and slides across a fric- tionless track (as shown in the figure below). It leaves the track horizontally, flies through the air, and subsequently strikes the ground. The acceleration of gravity is 9 . 81 m / s 2 . b b b b b b b b b b b b 501 g 2 . 1m x 9 . 81m / s 2 v 11 kN / m 5 . 2 cm What is the speed v of the block when it leaves the track? Correct answer: 7 . 70515 m / s....
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