cq_1_121

phy121

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?

Fnet = 58.8N on the 6kg side minus the 49N on the 5kg side, giving you a Fnet of 9.8N in the direction of the 6kg at an acceleration of .89m/s/s

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?

Since they are moving in a direction opposite of the acceleration produced by Fnet, it starts at a rate of -1.8m/s. With an acceleration of .89m/s/s produced by Fnet, in one second they will be traveling at -.091m/s.

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?

During the first second, they velocity is in an opposite direction than the acceleration of it. During this first second, the system slows down.

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10min

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&#Your work looks very good. Let me know if you have any questions. &#