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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: ->->->->->->->->->->->-> :
Fnet = m*a
= 12kg * 3m/s^2
=36 N
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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: ->->->->->->->->->->->-> :
a = Fnet/m
= 20 N/ 4 kg
= 5m/sec^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: ->->->->->->->->->->->-> :
a = Fnet/m = 20 N /10 kg = 2m/sec^2
Acceleration sould be 2m/sec^2. You are not the only force acting upon the object if acceleration is 1.5m/sec^2.
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What is the total of all those forces and in what direction does this total act?
answer/question/discussion: ->->->->->->->->->->->-> :
The total of all forces acting on an object is Fnet. Other forces can work with you or against you, depending on the situation.
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10 minutes
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&#Very good responses. Let me know if you have questions. &#