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1. Three masses are arranged as shown to the right. The ropes connecting the masses are massless and the pulley is massless and frictionless. A force, F, is applied to m1 up the incline on the left. All three blocks are released from rest and the values of the masses are 25.0 kg, 15.0 kg and 10.0 kg for mi, m2 and m3 respectively. There is no friction. 71 2 m3 60° 300 (a) First assume that the magnitude of the applied force, F, is zero. In that case, determine both the magnitude and the direction (left/right) of the acceleration of all three blocks (b) What are the magnitudes of T, and T2? (c) What must the magnitude of F be for the acceleration of the masses to go to zero? (d) What must the magnitude of F be for the magnitude of T2 to go to zero?
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