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Standard IX

Physics

Second Law of Motion

Ten one-rupee...

Question

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. The reaction of the $6^{t h}$ coin (counted from the bottom) on the $7^{t h}$ coin is

4 mg

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6 mg

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7 mg

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3 mg

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Solution

The correct option is A 4 mg
The sixth coin is under the weight of four coins above it.
Hence, Reaction of the $6^{t h}$ coin = Force on the $6^{t h}$ coin due ti $7^{t h}$ coin = 4 mg

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Similar questions

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass

m

. Give the magnitude and direction of

(a) The force on the

7^{t h}

coin (counted from the bottom) due to all the coins on its top.

(b) The force on the

7^{t h}

coin by the eighth coin.

6^{t h}

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Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Give the magnitude and direction of:
a) the force on the $7^{t h}$ coin (counted from the bottom) due to all the coins on its top,
b) the force on the $7^{t h}$ coin by the eighth coin,
c) the reaction of the 6th coin on the $7^{t h}$ coin.

Q. Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. Give the magnitude and direction of (a) the force on the 7th coin (counted from the bottom) due to all the coins on its top, (b) the force on the 7th coin by the eighth coin, (c) the reaction of the 6th coin on the 7th coin.

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Q. Ten

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

The correct option is A 4 mgThe sixth coin is under the weight of four coins above it.Hence, Reaction of the 6th coin = Force on the 6th coin due ti 7th coin = 4 mg

Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. The reaction of the $6^{t h}$ coin (counted from the bottom) on the $7^{t h}$ coin is

The correct option is A 4 mg
The sixth coin is under the weight of four coins above it.
Hence, Reaction of the $6^{t h}$ coin = Force on the $6^{t h}$ coin due ti $7^{t h}$ coin = 4 mg