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$\begingroup$ Common English usage would imply the car is gaining speed $\endgroup$
– Jon Custer
Commented Dec 10, 2023 at 16:58
5

$\begingroup$ "accelerating uphill" strongly suggests that the the acceleration vector is non-zero, and that it points toward the top of the hill. The velocity vector, on the other hand, is completely unspecified. If the car were headed, down the hill, then stepping on the brake would be "accelerating uphill," and the answer would be (A). Seems like answers (C) and (D) both require the velocity vector to point toward the top of the hill. The only way you get (C) then is if the car is moving toward the top of the hill, but accelerating in the opposite direction to its motion (i.e., "downhill"). $\endgroup$
– Solomon Slow
Commented Dec 10, 2023 at 17:44

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