A lizard, at an initial distance of 21 cm behind an insect moves from rest with an acceleration of … and pursues the insect which is crawling uniformly along a straight line at a speed of …. Then the lizard will catch the insect after :

Option C. The motion of the lizard, which starts from rest and accelerates at a rate of …, can be described by the equation of motion :

Application of Derivatives

JEE Main 2005 · Annual, Paper 1 · Q2740

MathematicsHard175×since 2002Q2740

A lizard, at an initial distance of 21 cm behind an insect moves from rest with an acceleration of

2 \mathrm{~cm} / \mathrm{s}^2

and pursues the insect which is crawling uniformly along a straight line at a speed of

20 \mathrm{~cm} / \mathrm{s}

. Then the lizard will catch the insect after :

JEE Main 2005 · Annual, Paper 1 · Q2740

MathematicsHard175×since 2002Q2740

A lizard, at an initial distance of 21 cm behind an insect moves from rest with an acceleration of

2 \mathrm{~cm} / \mathrm{s}^2

and pursues the insect which is crawling uniformly along a straight line at a speed of

20 \mathrm{~cm} / \mathrm{s}

. Then the lizard will catch the insect after :