10 one-rupee coins are put on top of each other on a table. Each coin ...
According to newton's 3rd law of motion action=reaction force
The normal reaction on 7th coin due to 6th coin is same that the force acting on 6th coin due to 7th coin therefore, force acting on 7th coin due to above it is 3mg
Then each coin has mass m so, the reaction of 6th coin=3mg+mg=4mg
10 one-rupee coins are put on top of each other on a table. Each coin ...
10 coins on a table with mass m each
The situation described involves 10 one-rupee coins stacked on top of each other on a table, with each coin having a mass of m.
Reaction of the 6th coin on the 7th coin
Force of gravity acting on each coin:
- Since each coin has a mass of m, the force of gravity acting on each coin can be calculated as F = mg, where g is the acceleration due to gravity.
- Therefore, the force of gravity acting on each coin is equal to m times the acceleration due to gravity.
Force between the 6th and 7th coin:
- The 6th coin exerts a force on the 7th coin due to its weight, which is equal to the force of gravity acting on the 6th coin (m*g).
- According to Newton's third law of motion, the 7th coin exerts an equal and opposite force on the 6th coin.
- Therefore, the reaction of the 6th coin on the 7th coin is a force equal in magnitude to the weight of the 6th coin, which is m*g.
In conclusion, the reaction of the 6th coin on the 7th coin is a force equal to the weight of the 6th coin, which is m times the acceleration due to gravity.