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phy 231
Your 'cq_1_11.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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Seed Q 11.1
Answer the following based on Newton's Second Law:
How much net force is required to accelerate a 12 kg mass at 3 m/s^2?
answer/question/discussion: ->->->->->->->->->->->-> :
Force = 12 mass units * 3 m/s^2 = 36 kg m/s^2 (Newtons)
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What would be the acceleration of a 4 kg mass subject to a net force of 20 Newtons?
answer/question/discussion: ->->->->->->->->->->->-> :
20 Newtons / 4 mass units = 5 m/s^2
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If you exert a force of 20 Newtons on a 10-kg object and it accelerates in the direction of your force at 1.5 m/s^2, then how do you know there are other forces acting on the object besides your own?
answer/question/discussion: ->->->->->->->->->->->-> :
If I exerted a force of 20 N, then it should accelerate at 20N/10 kg = 2 m/s^2. The object is only accelerating at 1.5 m/s^2. This tells me there must be a force acting against the force I am exerting.
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&#Very good responses. Let me know if you have questions. &#