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Introductory Physics Homework Help
Basic Q's Net Force and Acceleration
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[QUOTE="kstbts, post: 4765992, member: 512228"] [h2]Homework Statement [/h2] [ATTACH=full]170453[/ATTACH] [h2]Homework Equations[/h2] I am wondering if the answers given in the teacher's guide are incorrect. Ans given for #2: [All same], [A,C,B,D] Ans given for #3: [A,C,D,B] [h2]The Attempt at a Solution[/h2] My answers: #2a: Net forces: A,B,C are 5N; D is 10N. Therefore the order of the net forces from greatest to least is D, followed by A,B,C which are equal. #2b: Their accelerations are a) 5N/5kg=1m/s2 b) 5N/10kg=0.5m/s2 c) 5N/5kg=1m/s2 d) 10N/20kg=0.5m/s2. Therefore the order of their accelerations from greatest to least would be A&C, which are the same, followed by B&D which are the same. Admittedly, the teacher's guide could be saying the same thing for this second part of the answer, but I can't be certain since their answer says nothing about A=C and B=D. #3: Accelerations are: a) a=(1000N-800N)/(1000N/9.8)=1.96m/s2 b) a=1.23 m/s2 c) a=1.4 m/s2 d) a= 0.98 m/s2 Therefore the order from greatest to least is A,C,B,D [/QUOTE]
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Basic Q's Net Force and Acceleration
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