-Physician said:Homework Statement
We have a body with force ##F=10N##. Now we know Force of friction makes the body not move if the Force of friction ##F_f## is higher than the normal force ##F_n##, so what force of friction do we have to depress to make the body move
2. The attempt at a solution
We know that the force of friction ##F_f## has to be lower or equal to normal force ##F_n##, so the solution would be:
##F_f ≤ 10N##
Am I right? Thanks!
In general the normal force is perpendicular to the surface, and the force of friction is parallel to the surface, so this question appears to make no sense!-Physician said:Homework Statement
We have a body with force ##F=10N##. Now we know Force of friction makes the body not move if the Force of friction ##F_f## is higher than the normal force ##F_n##, so what force of friction do we have to depress to make the body move
2. The attempt at a solution
We know that the force of friction ##F_f## has to be lower or equal to normal force ##F_n##, so the solution would be:
##F_f ≤ 10N##
Am I right? Thanks!
-Physician said:It's my teacher's homework ..., she found it from the book, and the task says:
The body has force ##F=10N##. What force of friction ##F_f## do we have to depress to make the body move. Remind:
The force of friction ##F_f## has to be lower or equal to normal force ##F_n##, so the body can move.
This is the exact text that is written on the book.
The force of friction is the resistance that occurs when two surfaces come into contact and slide against each other. It is caused by the microscopic irregularities on the surfaces and the interlocking of the surfaces.
The force of friction can be calculated by multiplying the coefficient of friction (μ) by the normal force (FN). The formula is Ff = μFN.
The force of friction is affected by the type of surfaces in contact, the force pressing the surfaces together (normal force), and the roughness and smoothness of the surfaces. The force of friction also depends on the speed of the objects and the presence of any lubricants.
The force of friction acts in the opposite direction of motion, so it can slow down or stop an object's movement. It also causes heat to be generated, which can affect the speed and efficiency of motion.
The force of friction can be reduced by using lubricants, such as oil or grease, to create a smoother surface between the two objects. The force of friction can also be reduced by using smoother surfaces or by reducing the normal force between the objects.