cq_1_111

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?

The net force equation is Fnet = mass * acceleration

Fnet = 12kg * 3m/s^2

Fnet = 26 N

Good, but 12 * 3 = 36, so it's 36 N

A newton N is a kg * m/s^2

answer/question/discussion:

• What would be the acceleration of a 4 kg mass subject to a net force of 20 Newtons?

Using the same equation,

Fnet = ma

20 N = 4kg * a

A = 5 m/sec^2

answer/question/discussion:

• 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?

Exclude the total force of 20N. By myself pushing a 10kg object at 1.5m/s^2 would result in me using a force of 15N. If 20N is the net force, that would mean that there is a total of 5N assisting me in some way.

answer/question/discussion:

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

The total of those forces is 5 Newtons (20 N – 5N = 15N, which is what I am doing alone.) The 5N is moving in a positive direction, the same as me.

answer/question/discussion:

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10 minutes

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Good work. See my notes and let me know if you have questions. &#