pison8748 pison8748
  • 28-01-2024
  • Mathematics
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A girl of height 80 cm is walking away from the base of a lamp-post at a speed of s√2.1 m/sec. If the lamp is 4 m above the ground, then find the length of her shadow after 4 sec.
a) 11.2 m
b) 12.3 m
c) 13.4 m
d) 14.5 m

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