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Ten one-rupee coins are put on top each ...

Ten one-rupee coins are put on top each other on a table. Each coin has a mass m. The rection of the `6^(th)` coin (counted from the bottom) on the `7^(th)` coin is

A

4mg

B

6mg

C

7mg

D

3mg

Text Solution

Verified by Experts

The correct Answer is:
A
The sixth coin is under the weight of four coins above it. Hence, Reaction of the` 6^(th)` coin on the` 7^(th)` coin
= Force on the `6^(th)` coin due to `7^(th)` coin = 4mg
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