Questions
A force of 100 N is applied on a block of mass 3 kg as shown in the figure. The coefficient of friction between the surface and the block is . The frictional force acting on the block is
detailed solution
Correct option is C
N' = 100 cos 300 = 100.32 = 503NNet driving force = (100 × 12-30) = 20 N (upward)flimiting13(503) = 50 N∴ friction = 20 N (downwards)Talk to our academic expert!
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An ice cube is kept on an inclined plane of angle 30°. The coefficient of kinetic friction between the block and incline plane is the . What is the acceleration of the block?
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