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A lunar landing module is descending tow...

A lunar landing module is descending toward the moon's surface at a steady velocity of 10 ms. At a height of 120 m, a small objects falls from its landing gear. Taking the moon's gravitational acceleration as 1.6 ms , at what speed (in ms) does the object strike the moon ?

A

202

B

22

C

19.6

D

16.8

Text Solution

Verified by Experts

The correct Answer is:
b
Here `v^(2)-10^(2)=2xx1.6xx120`
or `v^(2)=484` and v=22 m
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MODERN PUBLICATION-DESCRIPTION OF MOTION IN ONE DIMENSION -MULTIPLE CHOICE QUESTION (LEVEL-II)
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