Question

13. Forces, applied on an object, along the same direction add to one another; if the forces are applied in opposite direction (on a given object), the net force acting on it is the difference between the forces, this net force acts along the direction of the larger force. If a box of mass 'm' has to be moved from position A to position B, the force has to be applied in such a manner so that the box moves in the direction towards position B. The magnitude of force applied depends on its mass 'm' which determines the force with which box is pressing the surface on which it is lying.

(a) Define 'balanced forces'.

(b) Which force opposes the motion of the box on the surface on which it is kept ?

(c) Does the above mentioned force remain constant or does it keep on changing (within limits) ?

(d) Name the kind of forces (balanced or unbalanced) which can bring about change in the position, speed or direction of motion of the object on which they are acting.

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Answer 1

Answer:

Demonetisation means an act of stripping the legal tender status of currency units. It happens whenever there is a change of any national currency. It involves the withdrawal of the current form or forms of money from being circulated usually replaced with new notes or coins.