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Find the acceleration a

0 votes
328 views

Note: a and g are magnitudes; the directions
of ~a and ~g are shown in the figure below (the
acceleration is pointing up).Consider a force of 22 m g pulling three
blocks connectedby inextensible strings
(which can be considered massless)in the vertical direction,where the masses are a multiple of a given mass m


 

asked Sep 24, 2014 in AP Physics C by ang2014 (410 points)

1 Answer

0 votes
Here, we don't need to find T's. All three block can be considered together as a whole with ||M=20m||. The total weight is ||20mg||. The net force is point up ||F_{net}=22mg-20mg=2mg=Ma||. Then you can find a.
answered Sep 25, 2014 by PhysicsDude (21,750 points)
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