Four curves A, B, C and D are shown in the original figure as possible representations of one-dimensional motion. Which set of curves is physically possible?

Question

G1 Physics · Accepted Answer

Curve A is a phase-versus-time straight line and can represent uniform phase evolution in simple harmonic motion. Curve B is a closed velocity-displacement curve, which is physically possible for simple harmonic motion. Curve C shows velocity as a closed curve against time. A single time coordinate cannot correspond to two different velocities at the same instant, so such a closed v-t curve is not physically possible. Curve D shows total distance increasing monotonically with time, which is phy…