Advertisements
Advertisements
Question
It is difficult to open an inkpot with greasy or oily hands. Explain.
Advertisements
Solution
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
RELATED QUESTIONS
Select the correct alternative.
A force to be expressed correctly requires
Give one example of slows down motion to indicate that the application of a force?
State the effect produced by a force in the following case:
A cyclist applies brakes
Name the type of force which act in the following case:
A stone falls from a roof
Name the type of force which act in the following case:
A magnet attracts an iron pin
Which offers more friction on a body: a glass surface or a wooden surface?
Solve the following numerical problem.
Two horses pull a cart in the same direction with a force of 500 N each. Find the resultant force acting on the cart.
Answer the following in detail.
Why do all objects have a tendency to fall towards the centre of the earth?
During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is ______.
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?
