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mcyyan mcyyan
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Posts: 74
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9 years ago
A rock is dropped from rest off of a high cliff on another planet, planet X. There is no atmosphere, and thus no air resistance, on planet X. At the end of 1 second, the rock is moving at a speed of 6 m/s. What is the rock's average speed during the entire first second [from t=0 until t=1 sec]?
a   6 m/s
b   3 m/s
c   10 m/s
d   0
e   5 m/s
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wrote...
Educator
9 years ago
Use v = a*t.
mcyyan Author
wrote...
9 years ago
thank you
wrote...
Educator
9 years ago
What did you choose?
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