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AP Physics C: Mechanics/Unit 1 – Kinematics
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Relative Displacement of Particles

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The positions of two particles, A and B, moving along the x-axis are given by xₐ(t) = 4sin(πt) and xᵦ(t) = 4cos(πt), where position x is in meters and time t is in seconds. What is the magnitude of the displacement of particle B relative to particle A during the interval from t = 0.25 s to t = 0.75 s?

A

4 m

B

8 m

C

5.66 m

D

0 m

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