Linear Inequalities

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Question 1

A lizard, at an initial distance of 21 cm behind an insect, moves from rest with an acceleration of 2 cm/s2 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

  • 20 s

  • 1 s

  • 21 s

  • 24 s



21 s

1 half space 2 straight t squared space equals space 21 plus space 20 straight t
space straight t space equals space 21