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Pulses A, B, C, and D all travel at 10 m/s on the same string but in opposite directions. The string is depicted at time t=0 in (Figure 1). The small pulses have an amplitude of 2.0 cm, and the large pulse has an amplitude of 4.0 cm.
A) Find the displacement of point P at time t=0.10s .
B) Find the displacement of point P at time t=0.20s .
