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A block is kept on the floor of an eleva...

A block is kept on the floor of an elevator at rest. The elevator starts descending with an acceleration of `12 m//s^2` . Find the displacement of the block during the first 0.2 s after the start. Take `g = 10 m//s^2`

A

40cm

B

30cm

C

20cm

D

10cm

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-RIVISION EXERCISE-LAW OF MOTION (APPARENT WEIGHT, TENSION, AND NORMAL REACTION)
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  13. A uniform rope of mass m hangs freely from a ceiling. A bird of mass M...

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  14. Two bodies of masses 4 kg and 6 kg connected by means of a light strin...

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  15. An empty plastic box of mass m is found to accelerate up at the rate o...

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  16. Amonkey of mass 15kg is climbing on a rope with one end fixed to the c...

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  17. A massless string passes around a frictionless pulley whose axis is ho...

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  18. A railway engin of mass 50 tons is pulling a wagon of mass 40 tons wit...

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  19. A light stright fixed at one end to a wooden clamp on a ground passes ...

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