A coin of rupee one is placed on a cardboard. This cardboard along with coin is placed on anempty glass. The coin will fall into the glass if.
1 point
A) We strike the coin with a finger
B) We strike the cardboard very slowly with a finger
C) We strike hard the cardboard with a finger
D) We strike the card board with a finger and the coin is glued with the cardboard
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19
Answer:
d option is the correct answer.
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Answered by
1
The coin on the cardboard will fall into the glass if we strike hard the cardboard with a finger.
- Every object tends to resist the change in the state of rest or motion called inertia.
- When we strike hard the cardboard with a finger, the card changes its state from rest to motion.
- The frictional force between the coin and the cardboard tries to take the coin along with the cardboard. The inertia of the coin tries to resist this change.
- If the strike is strong enough, the frictional force would not be able to overcome the inertia and take the coin with the cardboard and it will fall into the glass.
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