phy121
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?
12kg * 3m/s/s = 36Newtons
What would be the acceleration of a 4 kg mass subject to a net force of 20 Newtons?
20Newtons / 4kg = 5m/s/s
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?
10kg * 1.5m/s/s = 15Newtons
Since you exerted 20Newtons but the object only exibited 15Newtons of force, then there are 5Newtons wasted on friction and other factors.
What is the total of all those forces and in what direction does this total act?
fFrict
They act in the opposite direciton to the Force you exerted on the object.
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5min
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&#Your work looks very good. Let me know if you have any questions. &#