A force is applied horizontally to a block to move it up a 30∘ incline. The incline is frictionless. If F = 50.0 N and M = 6.5 kg, what is the magnitude of the acceleration of the block? |a→| = m/s2
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A force is applied horizontally to a block to move it up a incline. The incline is frictionless. If and , what is the magnitude of the acceleration of the block?
![(a) A mass M1 = 20 kg is suspended by a light string from the ceiling of a lift of mass M2 = 400 kg. i) If the lift accelerates upwards at 1.5 m/s2, what is the tension in the lift cable and in the string? [3 marks] ii) If the string breaks when subjected to a tension of more than 600 N , what is the greatest possible tension in the lift cable so that the string remains intact? [3 marks] (b) [6 marks] A force F = 45 N acts upon a block of mass M1 = 30 kg , that pushes a second block of mass M2 = 10 kg, that pushes a third block of mass M3 = 5 kg (see figure). The whole system moves along a straight line in absence of gravity or friction. Evaluate the acceleration of the whole system and the contact forces F1/2, F2/1 between the blocks 1 and 2 and F2/3, F3/2 between the blocks 2 and 3.](https://www.doubtrix.com/uploads/editor/9353356976KGzlFORQFg.jpg)
