Question

spread a jute bag
1.
A block is sliding on a horizontal surface. The force of friction between
can be increased by-
decreasing the area of contact of the block with the surface
applying a layer of some lubricant on the surface.
by polishing the surface.
by putting a second identical block on top of the given block.​

Answer 1

It will go farthest on the surface having least frictional force, i.e. the polished marble surface. Question. 5 If we apply oil on ...

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