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Question

The water drops fall at regular intervals from a tap 5m above the ground. The third drop is leaving the tap at the instant the first drop touches the ground. How far above the ground is the second drop at the instant?

A
1.25m
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B
2.50m
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C
3.75m
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D
4.00m
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Solution

The correct option is B 3.75m

Time for download journey t=2hg=2×510=1s

So far regular interval drops are falling at interval of 1/2 sec

distance fallen by 2nd drop =12g(12)2=54m

height of 2nd drop =554=154=3.75m


262658_283198_ans_a5a5586be92b4fb286cdc9f85a6a0a20.png

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