kinetic friction between the box and the surface is 0.5. A horizontal force pulls the box at a constant velocity for 10 cm. What will be the work done by the applied horizontal force and the frictional force ? (take g=10 m/s 2)
Note In friction force work done only dynamic friction forces not static forces.. If the friction acting is static friction, then no work will be done since static friction does not move objects, instead it just opposes the movement of object from rest if the object is in contact with any rough surface
if the friction acting is kinetic friction, then work done by the friction will always be nagative and will be given by the formula -kmg (where k is the coefficient of friction of the given surface). I hope this helps. :) What is the meaning of work done against friction and gravity?
So w= (Fcosθ)Δh? (a) A block with a mass m is pulled along a horizontal surface for a distance x by a constant force vector F at an angle θ with respect to the horizontal. The coefficient of kinetic friction between block and table is μk.
Example: A 5.0 kg box rests on a horizontal surface. The coefficient of
Example: A 5.0 kg box rests on a horizontal surface. The coefficient of