A duster weighs 0.5 N. It is pressed against a vertical board with a horizontal force of 11 N. If the co-efficient of friction is 0.5 the minimum force that must be applied on the duster parallel to the board to move it upwards is

A duster weighs 0.5 N. It is pressed against a vertical board with a h

1.	A duster weighs 0.5 N. It is pressed against a vertical board with a horizontal force of 11 N. If the co-efficient of friction is 0.5 the minimum force that must be applied on the duster parallel to the board to move it upwards is
Answer» 0.4 N 0.7 N 6 N 7 N ANSWER :C