Q.

Statement I : A ladder  is more likely to slip when a person is near the top than when he is near the bottom.Statement II : The friction between the ladder and floor decreases as he climbs up.

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a

If both statement I and statement II are true and statement II is the correct explanation of statement I.

b

If both statement I and statement II are true but statement II is not the correct explanation of statement I.

c

If statement I is true but statement II is false

d

If both statement I and statement II are false

answer is C.

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Detailed Solution

As the person climbs up, then a large torque is produced due to wt of person about the point of contact of ladder and floor. This increases the possibility of the ladder slipping.
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Statement I : A ladder  is more likely to slip when a person is near the top than when he is near the bottom.Statement II : The friction between the ladder and floor decreases as he climbs up.