olivia places her pet frog on a line to observe the frogs motion. the line is divided into sections that…
olivia places her pet frog on a line to observe the frogs motion. the line is divided into sections that measure 1 centimeter each. the frog begins at 0, moves 18 centimeters forward, moves 6 centimeters backward, and then 12 centimeters backward. what is the frogs displacement? 0 6 18 36
Answer
Explanation:
Step1: Define forward and backward motion
Forward is positive, backward is negative. Initial position $x_0 = 0$. First - move: $x_1=x_0 + 18=0 + 18=18$.
Step2: Account for second move
Second move is backward, so $x_2=x_1-6=18 - 6 = 12$.
Step3: Account for third move
Third move is backward, so $x_3=x_2-12=12 - 12=0$.
Answer:
0