Phy231
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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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: ->->->->->->->->->->->-> :
Fnet=ma=12kg*3m/s^2=36Newtons
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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: ->->->->->->->->->->->-> :
Fnet=ma a=Fnet/m=20Newtons/4kg=5m/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: ->->->->->->->->->->->-> :
F=10kg*1.5m/s^2=15Newtons, because if should only take 15Newtons to move the object at 1.5m/s^2, so if it takes 20Newtons
to move the object at an acceleration of 1.5m/s^2 then there is a force pushing against it.
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What is the total of all those forces and in what direction does this total act?
answer/question/discussion: ->->->->->->->->->->->-> :
The total would be 5Newtons and it is moving in the opposite direction of the force that I'm putting out.
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15min
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4/1/10 8:30am
&#Very good responses. Let me know if you have questions. &#