Question
The cap of pen or a tap can be easily opened with the help of two fingers than with one finger. Why?
Solution
A single force is applied with the help of one finger. And, two forces in the opposite direction is applied with the help of two fingers.
Rotational motion produced by a single force is less than two equal and opposite forces. Therefore, it is easy to open the cap with the help of two fingers rather than one finger.
Rotational motion produced by a single force is less than two equal and opposite forces. Therefore, it is easy to open the cap with the help of two fingers rather than one finger.
