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Ten one-rupee coins are put on top of ea...

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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(a) 3 m g (down) (b) 3 m g (down) (c) 4 m g (up)
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NCERT GUJARATI-LAW OF MOTION-EXERCISE (ADDITIONAL EXERCISE)
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  2. Figure shows a man standing stationary with respect to a horizontal c...

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  3. A stone of mass m tied to the end of a string revolves in a vertical c...

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  4. A helicopter of m ass 1000 kg rises with a vertical a c c ele ra tio n...

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  5. A stream of water flowing horizontally with a speed of 15 m s'1 gushes...

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  6. Ten one-rupee coins are put on top of each other on a table. Each coi...

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  7. An aircraft executes a horizontal loop at a speed of 720 km/h with its...

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  8. A train runs along an unbanked circular track of radius 30 m at a spee...

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  9. A block of mass 25 kg is raised by a 50 kg man in two different ways a...

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  10. A monkey of mass 40 kg climbs on a rope. which can stand a maximum ten...

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  11. Two bodies A and B of masses 5 kg and 10 kg in contact with each othe...

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  12. A block of mass 15 kg is placed on a long trolley. The coefficient of ...

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  13. The rear side of a truck is open and a box of 40 kg mass is placed 5 m...

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  14. A disc revolves with a speed of 33 1/3 rev/min. 3 and has radius of 1...

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  15. You may have seen in a circus a motorcyclist driving in vertical loops...

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  16. A 70 kg man stands in contact against the inner wall of a hollow cylin...

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  17. A thin circular loop of radius R rotates about its vertical diameter w...

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