AP TEST PHYSICS FRICTION AND THE HANGING BOX
IN THE SYSTEM SHOWN, THE BLOCK OF MASS M1 IS ON A ROUGH HORIZONTAL TABLE. THE STRING THAT ATTACHES IT OT THE BLOCK OF MASS M2 PASSES OVER A FRICTIONLESS PULLEY OF NEGLIGIBLE MASS. THE COEFFICIENT OF KINETIC FRICTION
mK BETWEEN M1 AND THE TABLE IS LESS THAN THE COEFFICIENT OF STATIC FRICTION mS.A) ON THE DIAGRAM, DRAW AND IDENTIFY ALL THE FORCES ACTING ON THE BLOCK OF MASS M1
B) IN TERMS OF M1 AND M2 DETERMINE THE MINIMUM VALUE OF
mS THAT WILL PREVENT THE BLOCKS FROM MOVING.THE BLOCKS ARE SET IN MOTION BY GIVING M2 A MOMENTARY DOWNWARD PUSH. IN TERMS OF M1, M2,
mK AND g, DETERMINE EACH OF THE FOLLOWING:C) THE MAGNITUDE OF THE ACCELERATION OF M1
D) THE TENSION IN THE STRING