An 8 kg and a 2 kg block are attached to a pulley system as shown in the picture and a force is being applied to the left. If the 2 kg block is accelerating upward at 1.2 m/s2 , what is the force used to pull the blocks? There is no friction between the 8 kg block and the surface its moving across and you can assume the rope is massless and the pulley is massless and frictionless.  a) 78.4 N b) 19.6 N c) 31.6 N d) 98.0 N

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