1 answer
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1. 4b7efdfec0744969a3b2ec7b1659b35f_W: b.increasing, nonlinear velocity
2. 51596eebb5984acda2965e3a3edfaeab_W: a.zero linear velocity
3. 9c9691c241c0471db5328eb7564bb586_W: c.decreasing, nonlinear velocity
4. 71437ef97833458782a65d53199d7ffa_W: d.positive linear velocity