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phy 201
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 = 12kg x 3 m/s^2
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: ->->->->->->->->->->->-> :
Fnet = ma
20N = 4kg x a
A = 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: ->->->->->->->->->->->-> :
20 N does not equal 10kg x 1.5 m/s^2
Because when you multiply m x a it will not equal 20 N; There is friction
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• What is the total of all those forces and in what direction does this total act?
answer/question/discussion: ->->->->->->->->->->->-> :
Fnet= f +fFrict
fFrict 10kg x 1.5.5 m/s^2 = 15 N - accelerates in the direction of your force
Fnet = 20 N + 15 N = 35N
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Solution
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