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Find the apparent weight of a man weighing 49 kg on earth when he is standing in a lift which is falling freely under the action of gravity.

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Find the appared weight of a man weighing 49 kg on earth, when he is standing in a lift which is (i) rising with an acceleration of 1.2 m//s^(2) (ii) going down with same acceleration (iii) falling freely under gravity (iv) going up or down with unifrom velocity . Take g= 9.8 m//s^(2) . \

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SL ARORA-Laws of Motion-Exercise
  1. Find the appared weight of a man weighing 49 kg on earth, when he is s...

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  2. Find the appared weight of a man weighing 49 kg on earth, when he is s...

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  3. Find the apparent weight of a man weighing 49 kg on earth when he is s...

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  4. Find the appared weight of a man weighing 49 kg on earth, when he is s...

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  5. A body of mass 15 kg is hung by a spring balance in a lift. What would...

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  6. A body of mass 15 kg is hung by a spring balance in a lift. What would...

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  7. A body of mass 15 kg is hung by a spring balance in a lift. What would...

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  8. A mass of 10 kg is suspended from a string, the other end of which is ...

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  9. The strings of a parachute can bear a maximum tension of 72 kg wt. By ...

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  10. A 70 kg man in sea is being lifted by a helicopter with the help of a ...

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  11. An elevator and its load weigh a total of 800kg Find the tension T in ...

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  12. A 30 g bullet leaves a rifle with a velocity of 300 ms^(-1) and the ri...

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  13. A 40kg shell is flying at a speed of 72km//h It explodes into two piec...

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  14. A gun weighing 4 kg fires a bullet of 80 g with a velocity of 120 ms^(...

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  15. A car of mass 1000 kg moving with a speed of 30 m//s collides with the...

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  16. A bullet of mass 7kg is fired into a block of metal weighing 7kg The b...

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  17. A truck of mass 2xx10^(4) kg travelling at 0.5ms^(-1) collides with an...

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  18. A neutron of mass 1.67xx10^(27) kg moving with a speed of 3xx10^(6)ms^...

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  19. A bomb at rest explodes into three fragments of equal massses Two frag...

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  20. A man weighing 60 kg runs along the rails with a velocity of 18 kmh^(-...

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