A hand pushes a 3 kg block along a table from point A to point C, as shown (see link). The table has been prepared so that the left half of the table from A to B is frictionless. The right half from B to C has a non-zero coefficient of friction equal to u. The hand pushes the block from A to C using a CONSTANT FORCE of 5 N. The block starts off at rest at point A and copes to a stop when it reaches point C. The distance from A to B is 0.5m and the distance from B to C is also 0.5m.
a. Describe in words the motion of the block as it moves from A to C.
b. What is the kinetic energy of the block at point B?
c. Draw a free-body diagram for the block when it is at point P. Make sure to properly label all forces in a way that indicates the type of force, the object that exerts the force, and the object the force is being exerted on.
d. What is the direction of the acceleration of the block at point P? If it is zero, say so explicitly. Explain your reasoning.
e. Does the magnitude of the acceleration increase, decrease, or remain the same as the block moves from B to C? Explain your reasoning.
f. What is the net work done on the object as it moves from A to B? From B to C?
g. Calculate the coefficient of friction between the block and the rough surface.
I really loathe friction when it comes to physics ... any help would be appreciated. Much thanks!