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PHY 201
Your 'cq_1_12.1' 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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Masses of 5 kg and 6 kg are suspended from opposite
sides of a light frictionless pulley and are released.
What will be the net force on the 2-mass system and
what will be the magnitude and direction of its
acceleration?
answer/question/discussion: ->->->->->->->->->->->-> :
5kg*9.8m/s/s=49kg*m/s/s,
6kg*9.8m/s/s=58.8kg*m/s/s,
58.8N-49N=9.8N,
(9.8kg*m/s/s)/(5kg+6kg)=.89m/s/s down on the 6kg side.
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If you give the system a push so that at the instant
of release the 5 kg object is descending at 1.8 meters
/ second, what will be the speed and direction of
motion of the 5 kg mass 1 second later?
answer/question/discussion: ->->->->->->->->->->->-> :
I think the object will still be travelling in the 5
kg direction but it will have slowed to .9m/s^2
because of the positive acceleration from the 6 kg
side.
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During the first second, are the velocity and
acceleration of the system in the same direction or in
opposite directions, and does the system slow down or
speed up?
answer/question/discussion: ->->->->->->->->->->->-> :
During the first second velocity and acceleration are
in opposite directions and the system will slow down.
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&#Very good responses. Let me know if you have questions. &#