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प्रश्न
State if the following statement is true or false. Correct the statement if it is false.
If two forces acting in opposite directions on a body arc of equal magnitude, then the body will not move.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
State two factors which directly affect the force of friction.
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
Answer the following.
What do you understand by a force?
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Tick the most appropriate answer.
Friction for an object can be reduced by
Fill in the blank.
Rolling friction is ........... than sliding friction.
Fill in the blank.
Friction depends upon the ............... of an object.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
