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A person is standing in an elevator. In ...

A person is standing in an elevator. In which situation he finds his weight less ?

A

when the elevator moves upward with constant acceleration

B

when the elevator moves downward with constant acceleration

C

when the elevator moves upward with uniform velocity

D

when the elevator moves downward with uniform velocity

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The correct Answer is:
B
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MOTION-NEWTON'S LAWS OF MOTION & FRICTION -Exercise - 3 Section-A
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  2. In the figure given below, the position–time graph of a particle of ma...

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  4. A person used force (F) , shown in figure to move a load with constant...

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  5. The ratio of gravitational mass to inertial mass is equal to:

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  9. A block of mass m is in contact with the cart C as shown in The coeffi...

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  10. A person of mass 940 kg and presses the button on control panel. Then ...

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  11. A body mass M hits normally a rigid wall with velocity v and bounces b...

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  12. Assertion: The driver in a vechicle moving with a constant speed on a ...

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  13. A system consists of three masses m(1),m(2) " and " m(3) connected by ...

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  14. The force F acting on a partical of mass m is indicated by the force-t...

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  15. A balloon carring some sand is moving down with a constant acceleratio...

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  16. A block A of mass m(1) rests on a horizontal table. A light string con...

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  17. Three blocks A , B and C of masses 4kg , 2kg and 1kg respectively are ...

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  18. A sphere of radius 25 cm and mass 1 kg is hung by a string of negligib...

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  19. Find tension in string if theta = 30^(@) and the mass hanged in middl...

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