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A ladder is resting with the wall at an ...

A ladder is resting with the wall at an angle of `30^circ`. A man is ascending the ladder at the rate of 3 ft/sec. His rate of approaching the wall is

A

3 ft/sec

B

`3/2` ft/sec

C

`3/4` ft/sec

D

`3/(sqrt2)` ft/sec

Text Solution

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The correct Answer is:
B
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