A lizard, at an initial distance of 21 cm behind an insect, moves from rest with an acceleration of\[2\text{ }cm/{{s}^{2}}\]and pursues the insect which is crawling uniformly along a straight line at a speed of 20 cm/s. Then, the lizard will catch the insect after
AIEEE Solved Paper-2005
A)24 s
B) 21 s
C) 1 s
D) 20 s
Correct Answer:
B
Solution :
Let lizard catch the insect C and distance covered by insect = S Time taken by insect, ... (i) Distance covered by lizard According to the given condition, ...(ii) [from Eq.(i)]