Phy 231
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: ->->->->->->->->->->->-> : The heavier mass will have a force of 6kg*9.8m/s^2= 58.8N and the other 5*9.8= 49N so the netF= 58.8-49= 9.8N. The total mass is 11 and the force is 9.8, so 9.8N/11kg= 0.89m/s^2 which is the acceleration.
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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: ->->->->->->->->->->->-> : we could use an equation for this part.
`ds= 0m+1.8m/s*1+ (-8.9m/s^2)(1)^2= .91m so the object will travel .91m in 1s downward
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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 this 1st second, the acceleration is going against the motion of the system slowing the velocity of the system.
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15 min
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&#Good responses. Let me know if you have questions. &#