cq_1_111

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

The net force is equal to 12*3 which equals 36N

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

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

The acceleration would be 20 divided by 4 which equals 5m/s^2

• 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 the net force on the object is equal to 10*1.5 which is 15N. The net force equals the sum of the force applied plus the opposing frictional forces. Therefore there is a 5N frictional force going against the object. Also, the acceleration if there were no other forces would be 2m/s^2.

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

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

Because the net force on the object is equal to 10*1.5 which is 15N. The net force equals the sum of the force applied plus the opposing frictional forces. Therefore there is a 5N frictional force going against the object

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5 min

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