Question

8. A block 'A' of mass 14 kg moves along an inclined
plane that makes an angle of 30° with the horizontal
[Fig. 5.92]. Block A is connected to another block B
А
B
30°
Fig. 5.92
of mass 14 kg by a taut massless string that runs
around a frictionless, massless pulley. The block B
moves downward with constant velocity. What is
(i) the magnitude of the frictional force and (ii) the
coefficient of kinetic friction ?​

Answer 1

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