Advertisements
Advertisements
प्रश्न
It is difficult to open an inkpot with greasy or oily hands. Explain.
Advertisements
उत्तर
When the hands are oily, then the oil acts as a lubricant and reduces the friction.
As the friction force is less, it is difficult to get a grip of the inkpot and it becomes difficult to open it.
APPEARS IN
संबंधित प्रश्न
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gap in the following statement using the following terms.
The force applied by the archer to stretch the bow is an example of ______ force.
Write true or false.
The frictional force acts in the direction of motion of body
Write true or false.
The unit of weight is kilogram
Fill in the blank.
On squeezing a gum tube, its ............. changes.
Give one example of stops motion to indicate that the application of a force?
State if the following statement is true or false. Correct the statement if it is false.
Friction always acts in the direction of motion of an object.
Answer the following in a word or two or in a sentence.
Give an example in which a force can change the direction of an object.
Solve the following numerical problem.
Two persons are pushing a car with a force of 30 N and 70 N in opposite directions. Calculate the resultant force and its direction.
A ball of dough is rolled into a flat chapatti. Name the force exerted to change the shape of the dough.
A girl is pushing a box towards east direction. In which direction should her friend push the box so that it moves faster in the same direction?
