cq_1_111

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Phy 121

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: ->->->->->->->->->->->-> :

12 kg * 3 m/s = 36 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 kg = 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: ->->->->->->->->->->->-> :

Because your own would only cause it to accelerate at

20 N / 10 kg = 2 m/s^2

Something is causing it to slow down its acceleration by .5 m/s^2

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• What is the total of all those forces and in what direction does this total act?

answer/question/discussion: ->->->->->->->->->->->-> :

Let’s say your total force is 20 N to the left, the other force is exerting 5 N to the right.

Resulting in force of 15 N to the left.

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&#Very good responses. Let me know if you have questions. &#