Answer
a. A 2.5 m, B 3.5 m
b. A 0.25 Hz, B 0.50 Hz
c. A 4 sec, B 2sec
Work Step by Step
a. The amplitude of graph A is 2.5 meters, and for B, it is 3.5 m.
b,c. For graph A, a complete cycle takes 4.0 seconds, which is the period, and the frequency is 1/T, or 0.25 Hz.
For graph B, a complete cycle takes 2.0 seconds, which is the period, and the frequency is 1/T, or 0.50 Hz.