Question

Water level in a well was 20 m below ground level. During rainy season, rainwater

collected in different water tanks was drained into the well and the water level rises 5 m

above the previous level. The wall of the well is lm 20cm high and a pulley afixed at a

height of 80 cm. Raghu wants to draw water from the well. The minimum length of the

rope, that he can use is​

Answer 1

Answer:

After water level rises 5 m above the previous level, water level is now (20 - 5) = 15 m below the ground level. = 17 m.

Answer 2

Answer:

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Step-by-step explanation:

we have been given that,

Wells height=1.20m

Pulleys height=0.80m

Hence, the required ropes length

=(20−5+1.20+.80)

=(15+2)

=17m

Therefore, the minimum length of the rope is 17m.