Question

Olivia places her pet frog on a line to observe the frog motion. The line is divided into sections that measure 1 centimeter each. the frog begins at 0, moves 18 centimeters forward, moves 6 centimeters backwards, and then 12 centimeters backward. What is the frog's displacement?

Answer 1

There is no displacement. The frog is back where it began.

Answer 2

displacement of frog is zero

Step-by-step explanation:

Displacement of the frog is given as

`d_1` = 18 cm forward

`d_2` = 6 cm backwards

`d_3` = 12 cm backwards

so here we have

`d_1 = 18 cm`

`d_2 = -6 cm`

`d_3 = -12 cm`

so we have

`d = d_1 + d_2 + d_3`

`d = 18 - 6 - 12`

`d = 0`