A 6 kg block, held at rest on a rough horizontal table, is connected to another block of mass 3 kg by a light inextensible string passing over a frictionless pulley. The 3 kg block hangs vertically, as shown in the diagram below.Â
When the 6 kg block is released, it accelerates to the right and experiences a kinetic frictional force of 24 N. Ignore the effects of air friction.
4.1 State Newton’s Second Law of Motion in words. (2)
4.2 Draw a labelled free-body diagram showing ALL the forces acting on the 6 kg block. (4)
4.3 Calculate the magnitude of the acceleration of the 3 kg block. (6)
4.4 Explain the following statement:
The acceleration of an object is 0,6 m·s-2. (2)
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