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Physics
Physics
Problem
When a constant net external force
F
F
F
acts on an object for a time interval
Δ
t
\Delta t
Δ
t
, which of the following quantities equals the impulse delivered to the object? a)
2
F
Δ
t
2F\,\Delta t
2
F
Δ
t
b)
F
Δ
t
F\,\Delta t
F
Δ
t
c)
m
v
f
m v_f
m
v
f
d)
1
2
F
Δ
t
\dfrac{1}{2}F\,\Delta t
2
1
F
Δ
t
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