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Phy 201
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.
** CQ_1_11.1_labelMessages **
Copy the problem below into a text editor or word processor.
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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 = 12kg * 3m/s^2 = 36N
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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: ->->->->->->->->->->->-> :
20kg*m/s^2 = 4kg * a
A = 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: ->->->->->->->->->->->-> :
Because 20N / 10kg does not equal 1.5m/s^2, there is a force with a = -0.5m/s^2 acting on the system somewhere.
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• What is the total of all those forces and in what direction does this total act?
answer/question/discussion: ->->->->->->->->->->->-> :
N = 10kg * -0.5m/s^2 = -5N
The total of all the forces is 20N - 5N = 15N, a force of 15N is acting in the direction of movement of the object.
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&#Very good responses. Let me know if you have questions. &#