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Physics 9 Online
OpenStudy (anonymous):

a 10 kg mass on a horizontal friction free air track is accelerated by a string attached to another 10-kg mass hanging vertically from a pulley as shown.What is the force due to gravity in newtons of the hanging 10-kg mass? What is the acceleration of the system of both masses?

OpenStudy (espex):

Assume the system is a "blob" and the 'x' axis is skewed as shown, what is the net force acting upon the system? |dw:1355376951587:dw|

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