1. A force of 6 N acts on a small body pushing it vertically upwards. Simultaneously, another force of 9 N acts on it pushing it vertically downwards. The resultant of the two forces is _______.   15 N downwards   3 N upwards   15 N upwards   3 N downwards   Hint Half-n-half Clue   2. An inverted funnel placed on a table is in _______ equilibrium.   neutral   unstable   stable   Half-n-half Clue   3. Consider a thin rectangular plastic sheet. If a small piece of the plastic breaks off at one of the vertices, then the center of gravity of the remaining plastic (with respect to the original center of gravity)   will move towards the broken vertex.   will not move.   cannot be determined.   will move away from the broken vertex.   Half-n-half Clue   4. The center of gravity of a body is the point about which all the clockwise moments equal all the anticlockwise moments.   True   False   5. A sphere that is at rest on a table is in _______ equilibrium.   neutral   unstable   stable   Half-n-half Clue   6. Two equal and opposite forces acting at a point are in equilibrium.   True   False   7. A chalkstick that is balanced upright on a table is in _______ equilibrium.   unstable   neutral   stable   Half-n-half Clue