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AP Physics C Mechanics · Flashcards · Application
AP PHYSICS C MECHANICS · FLASHCARDS
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QUESTION
What is the momentum change for a 3 kg object accelerating from 0 to 4 m/s?
QUESTION
Identify the impulse required to stop a 2 kg object moving at 5 m/s.
QUESTION
Find the velocity of a 3 kg object with 15 kg·m/s momentum.
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ANSWER
v
=
5
m/s
v = 5 \text{ m/s}
v
=
5
m/s
. From
p
=
m
v
p = mv
p
=
m
v
:
v
=
p
m
=
15
3
=
5
v = \frac{p}{m} = \frac{15}{3} = 5
v
=
m
p
=
3
15
=
5
m/s.
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