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QTest #4-solutions - Version 079/ABADD QTest#4...

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Version 079/ABADD – QTest #4 – Antoniewicz – (56445) 1 This print-out should have 3 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points 2 kg 1 kg A B The diagram shows a compressed spring between two carts initially at rest on a hori- zontal frictionless surface. Cart A has a mass of 2 kg and cart B has a mass of 1 kg. A string holds the carts together. What occurs when the string is cut and the carts move apart? Note: Assume forces due to surroundings on the two-cart system are negligible. 1. The magnitude of the force exerted on cart A is one-half the magnitude of the force exerted on cart B 2. The magnitude of acceleration of cart A is the same as the magnitude of the acceleration of cart B 3. The magnitude of the impulse applied to cart A is twice the magnitude of the impulse applied to cart B 4. The length of time that the force acts on cart A is twice the length of time the force acts on cart B 5.
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