Assignment - Name _ Class Time _ Assignment: Chapters 4 and...

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Time _____ Assignment: Chapters 4 and 5 Due: Tuesday, 10 Nov 09 in class You must show your work for problems (equation, substitution with units, answers with proper significant figures and units) and write out your explanations for concept questions for full credit. 1. A soccer player accelerates a 0.40-kg ball from rest to 9.0 m/s during the 0.15 s in which the player’s foot is in contact with the ball. Find the average force the player exerted on the ball by finding the ball’s acceleration. Answer: ________________ Solution: 2. If the force acting on a shopping cart doubles while the mass remains the same, the shopping cart’s acceleration will ___. (a) quadruple (b) double (c) halve (d) quarter (e) remain the same Answer: ________________ Solution: 3. A freight elevator is holding a load of construction materials that weigh 20,000 N. What is the weight of the construction materials when the elevator is being accelerated upward at a rate of 3.00 m/s 2 ? Answer: ________________
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Assignment - Name _ Class Time _ Assignment: Chapters 4 and...

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