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AP Physics C Mechanics · Flashcards
AP PHYSICS C MECHANICS · FLASHCARDS
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QUESTION
What is the work done by gravity on a free-falling object?
QUESTION
What happens to work done if force is halved, keeping displacement constant?
QUESTION
What is the work done by friction over a distance
d
d
d
?
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ANSWER
W
=
−
f
×
d
W = -f \times d
W
=
−
f
×
d
. Friction always opposes motion, doing negative work on moving objects.
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