A force F is applied towards right on a block sliding at a speed of 2 m/s on a horizontal surface as shown below. Choose the correct statement regarding friction acting on the block at this instant.

irregularities on the surface

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attraction between objects

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repulsion between objects

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volume of the two objects

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Solution

The correct option is A irregularities on the surface
The block is sliding towards left on the surface. Hence, friction will act rightwards (i.e. in the direction of applied force). The applied force will simply decrease the speed of block.

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A force F is applied towards right on a block sliding at a speed of 2 m/s on a horizontal surface as shown below. Choose the correct statement regarding friction acting on the block at this instant.

The correct option is A irregularities on the surfaceThe block is sliding towards left on the surface. Hence, friction will act rightwards (i.e. in the direction of applied force). The applied force will simply decrease the speed of block.

The correct option is A irregularities on the surface
The block is sliding towards left on the surface. Hence, friction will act rightwards (i.e. in the direction of applied force). The applied force will simply decrease the speed of block.