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The mass of man when standing on the lif...

The mass of man when standing on the lift is 60 kg. The weight when the lift is moving upwards with acceration `4.9 ms^(-2)` is

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SL ARORA-Laws of Motion-Exercise
  1. A person of mass m isstanding in a lift. Find his apparent weight when...

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  2. A person of mass m is standing in a lift. Find his apparent weight whe...

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  3. The mass of man when standing on the lift is 60 kg. The weight when th...

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  4. Explain why? (a) a horse cannot pull a cart and run in empty space. ...

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  5. Obtain an expression for the centripetal force F acting on a particle...

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  6. Why does a gun recoil on firing? Obtain an expression for recoil veloc...

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  7. LAWS OF LIMITING FRICTION

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  8. Derive an expression for acceleration of a body down a rough inclined ...

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  9. Why are the curved roads banked ? Obtain an expression for angle of ba...

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  10. A 1000 kg car rounds a curve on a flat road of radius 50 m at a speed ...

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  11. In a vertical circle the minimum or critical velocity at highest pint ...

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  12. Why has a horse to pull a cart harder during the first few steps of hi...

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  13. The negatively charged dust particles are attracted by

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  14. A batsman deflects a ball by an angle of 45^(@) without changing its i...

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  15. What do you mean by central forces?

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  16. Draw neat, labelled diagram showing different forces acting on a vehic...

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  17. Detrmine the maximum acceleration of the train in which a box lying on...

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  18. A ship of mass 3xx10^7kg initially at rest, is pulled by a force of 5x...

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  19. A vessel containing water is given a constant acceleration 'a' towards...

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  20. Two particles of masses m1 and m2 in projectile motion have velocities...

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