The Same Heavy Wooden Block Is Dragged by a Force

Multiple Choice

The same heavy wooden block is dragged by a force along a rough steel plate, as shown below for two possible situations.The magnitude of the acceleration is the same for the two situations; do not assume that the magnitude of is the same.The magnitude of the frictional force in (ii) , as compared with that in (i) is:

A) the same
B) greater
C) less
D) less for some angles and greater for others
E) can be less or greater, depending on the magnitude of the applied force.