Q. An aluminum coin of mass 10 g is placed on a horizontal turn-table, 20 cm from the axis of rotation of the table. The coefficient of static friction between alumin and table is 0.30. Find the maximum linear speed the coin can be rotated without it drifting from its original position.
Q. A person walks 25.0 degrees north of east for 3.10 km. How far would another person walk due north and due east to arrive at the same location.