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Unformatted text preview: Thevalingam, Donald Homework 5 Due: Oct 26 2006, 11:00 pm Inst: Eslami 1 This print-out should have 4 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. I want everyone to press the Easy Button after solving these problems! 001 (part 1 of 1) 10 points Suppose a cart is being moved by a certain net force. If the net force is increased by a factor of 8 . 8, by what factor does its acceleration change? Correct answer: 8 . 8 . Explanation: Basic Concepts: F net = m a net Solution: The new force is n F , so multiply by n on both sides: n F net = n ( m a net ) = m ( n a net ) Since the mass doesnt change, the accelera- tion must change by a factor of n also. keywords: 002 (part 1 of 1) 10 points A 5 . 8 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18 N....
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