Multiple Choice
Phil leans over the edge of a cliff and throws a rock upward at 5 m/s. Neglecting air resistance, two seconds later the rock's speed is
A) zero.
B) 5 m/s.
C) 10 m/s.
D) 15 m/s.
E) none of the above
Correct Answer:

Verified
Correct Answer:
Verified
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