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?

displacement of frog is zero

Explanation:

Displacement of the frog is given as

= 18 cm forward

= 6 cm backwards

= 12 cm backwards

so here we have

so we have

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg