Question

A block of mass M rest on a rough horizontal surface.The coefficient of friction between the block and the surface is mu. A force F=mg acting at an angle theta with the vertical side of block pulls it. In which condition the surface of the block be pulled along ten surface? ​

Answer 1

Answer:

Block can be pulled only when the horizontal component of force is greater than the force of friction. The vertical component of force will decrease the weight and the normal reaction.

So, we get the condition