Q11Multiple choice
Water level in a well was 20m below ground level. During rainy season, rain water collected in different water tanks was drained 15-04-2018 into the well and the water level rises 5 m above the previous level. The wall of the well is 1m 20 cm high and a pulley is fixed 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
This question refers to a figure in the original PDF.
- (a)17 m
- (b)18 m
- (c)96 m
- (d)97 m Fig. 1.3
Show answer
(a) 17 m