At point C, we realize that the speed is increasing.
We also realize that the object is thrown and the air resistance is almost negligible.
Consider the following situations:
a. A car is moving along a straight road at a constant speed.
b. A car is moving along a straight road while slowing down.
c. A car is moving along a straight road while speeding up.
d. A hockey puck slides along a smooth (i.e., frictionless) icy surface.
e. A hockey puck slides along a rough concrete surface.
f. A cockroach is speeding up from rest.
g. A rock is thrown horizontally; air resistance is negligible.
i. A rock is thrown horizontally; air resistance is substantial.
j. A rock is dropped vertically; air resistance is negligible.
k. A rock is dropped vertically; air resistance is substantial.
Which situation or situations describe the motion shown in the motion diagram at point C?
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