HW4-solutions - Agha (sa9896) HW4 bohm (59970) 1 This...

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Unformatted text preview: Agha (sa9896) HW4 bohm (59970) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points A soccer ball kicked with a force of 12 . 1 N accelerates at 7 . 5 m / s 2 to the right. What is the mass of the ball? Correct answer: 1 . 61333 kg. Explanation: Basic Concept: vector F net = summationdisplay vector F = mvectora . Let : F net = 12 . 1 N to the right a = 7 . 5 m / s 2 to the right . Solution: m = F net a m = (12 . 1 N) (7 . 5 m / s 2 ) = 1 . 61333 kg . 002 (part 1 of 2) 10.0 points A bag of produce weighs 6 . 67 lb on Earth. What should it weigh on the Moon, where the free-fall acceleration is 1 6 that on Earth? Correct answer: 4 . 94692 N. Explanation: Given : W E = 6 . 67 lb and g M = g E 6 . The weight of the bag of sugar on the Moon is W M = m g M = m g E 6 = W E 6 = 6 . 67 lb 6 4 . 45 N 1 lb = 4 . 94692 N ....
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HW4-solutions - Agha (sa9896) HW4 bohm (59970) 1 This...

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